Offering Arsenal manager Arsene Wenger a new contract would be 'inappropriate', according to the club's fans.
A disappointing transfer window and 3-1 loss to Aston Villa in their opening game of the Premier League season on Saturday has Arsenal fans fearing their side may struggle this season.
In a statement, the Arsenal Supporters' Trust (AST) said there was no need to offer Wenger a new deal just yet.
"Chief executive Ivan Gazidis has spoken of the intent to offer Wenger a new contract. We believe this is inappropriate," the statement read.
"The entire focus must be on using the remaining days of the transfer window to strengthen the team significantly."
Arsenal last won a trophy in 2005 and were expected to spend big in the off-season, but are yet to pay for a player.
They have had several bids for Luis Suarez rejected after failing to meet Liverpool's valuation of the Uruguayan striker.
"Ambitious football clubs invest the money they receive from their fans, and sometimes their owners, to make themselves stronger," the AST statement read.
"Arsenal supporters pay some of the highest ticket prices in world football, providing the club with considerable financial resources, but the ambition and ability to use them appear to be missing.
"The fact that there is money available for squad-strengthening is not disputed. The AST's independent analysis suggests that the amount is somewhere between £70million and £100million."
The supporters also called on Arsenal's American owner Stan Kroenke to appoint 'an independent expert to conduct a review of all football functions' at the club.
"A decision on whether to offer an extension to the manager's contract, which ends in May 2014, should only be taken following the closing of the transfer window and assessment of the team's performances," the AST said.
"Considerable improvement must be shown for us to be convinced this should happen."
|6||L. Koscielny||61' 67'|
|Coach: A. Wenger|
for K. Gibbs 28'
for A. Oxlade-Chamberlain 46'
for B. Sagna 90+4'
|Podolski: Arsenal exit not a formality|
|Wellington Phoenix 1 Western Sydney Wanderers 0: Krishna wins it|
|Taylor wary of ´beast´ Lukaku|
|Al Habsi to lead Oman at Asian Cup|
|Lacazette will stay at Lyon - Aulas|
|Southampton like Atletico, says Alderweireld|
|World Cup held PSG back - Blanc|
|Everton facing ´pivotal´ moment - Martinez|
|Zamora urges QPR to tie down Austin|
|Badstuber, Alaba set for New Year return|
|Burgos: Atletico will get the best out of Torres|
|Chelsea to offer Terry new deal - Mourinho|
|Rodgers excited by Sterling development|
|Strinic close to finalising Napoli switch|
|Torres to join Milan on permanent deal|
|Scottish Premiership Review: Celtic held to shock draw, rivals fail to capitalise|
|Wenger sings Song´s praises|
|Pochettino calls for bravery|
|West Ham could lose Allardyce - Sullivan|
|League One Preview: Saunders takes charge for Colchester clash|
|Aguirre denies any involvement in La Liga match-fixing scandal|
|Mourinho impressed by Koeman´s Southampton|
|QPR v Crystal Palace: Millen recast in familiar role|
|West Ham v Arsenal: Allardyce eyes further home comfort|
|Elusive Coppa Italia on Juventus´ wish list - Marotta|
|Jones eyes swift response|
|Millen focused on QPR clash|
|League Two Preview: Shrewsbury, Wycombe and Burton vie for year-end top spot|
|Mancini not expecting big-money signings at Inter|
|Tottenham v Manchester United: Carrick expects tough return|
|Pearson eager to see Leicester resolve|
|Newcastle United v Everton: Martinez demands clinical touch|
|Liverpool v Swansea City: Rodgers backs returning Mignolet|
|Bayern can still improve - Sammer|
|Warnock sacked by Palace|
|Aston Villa v Sunderland: No club too big to go down, says Lambert|
|Hull City v Leicester City: Pearson vows to keep going|
|Stoke City v West Brom: Hughes targets elusive back-to-back wins|
|Rodgers dismisses Balotelli exit rumours|
|Modric will not rush Madrid return|
|Dyche pleased with Vokes return|
|Southampton v Chelsea: Koeman vows to go on the offensive|
|A-League Review: Six-goal Gosford thriller, Victory leave it late|
|Manchester City v Burnley: Pellegrini warns against complacency|
|Dortmund can fight on two fronts - Watzke|
|Sterling hails improved Liverpool belief|
|Rosicky eager to build on QPR winner|
|Wenger: ´We made it hard for ourselves´|
|Kane: Spurs eye top four|
|Di Maria in doubt for Spurs clash|
|Ba left out of Senegal AFCON squad|
|Redknapp frustrated by penalty call|
|Wenger sees Giroud wrongs|
|Premier League schedule a ´disgrace´, says Poyet|
|Championship Review: Bournemouth stay top, Heskey scores on Bolton debut|
|Hughes lauds Bojan performance|
|Koeman: Saints marching on|
|Pardew rues referee error|
|Arsenal 2 QPR 1: Sublime Alexis secures the spoils|
|Martinez questions Walters decision|
|Poyet laments Sunderland mistakes|
|League One Review: Swindon cruise to win over Walsall|
|Irvine aware of need for improvement|
|United still doing ´very bad things´ - Van Gaal|
|Lambert proud of players despite Swansea defeat|
|Warnock bemoans Palace defence|
|Bruce hails Hull´s spirit|
|Pochettino relieved to come away with victory|
|Dyche: We had our pocket pinched|
|Monk hails Fabianski performance|
|Pearson demands greater concentration from Leicester|
|Kompany set for City return|
|Rodgers hails character after battling win|
|League Two Review: Ainsworth frustrated by Luton, Shrewsbury go top|
|Everton 0 Stoke City 1: Lacklustre Everton slip to defeat|
|Sunderland 1 Hull City 3: Triumphant return for Bruce|
|Burnley 0 Liverpool 1: Sterling wins it at Turf Moor|
|Leicester City 1 Tottenham 2: Eriksen piles misery on Pearson´s men|
|Manchester United 3 Newcastle United 1: Rooney extends hosts´ streak|
|West Brom 1 Manchester City 3: Three and easy for in-form champions|
|Swansea City 1 Aston Villa 0: Hosts break Boxing Day duck|
|Crystal Palace 1 Southampton 3: Mane marks return with star performance|
|Allardyce upbeat despite defeat|
|Van Dijk happy at Celtic - Deila|
|Table-topping Chelsea delight Mourinho|
|Chelsea 2 West Ham 0: Mourinho´s men ease to victory|
|Suarez enjoying Messi, Neymar link-up|
|A-League Review: Garcia rescues point for Perth, Adelaide up to second|
|Poyet calls for mid-season break|
|Van Gaal rules out Januzaj move|
|Rodgers: Balotelli may have to get used to bench|
|Lallana: I was trying too hard|
|Walker juggles music, football careers in Sweden|
|Song to face ´brother from another mother´ Fabregas|
|Adriano announces Le Havre deal|
|Pardew braced for Old Trafford test|
|Lescott unfazed by City reunion|
|Tskhadadze appointed Georgia coach|
|United to finish top three - Ferdinand|
|Allardyce: Stamford Bridge stalemate saved my job|