Slaven Bilic suggests Hammers owner David Sullivan did not heed his advice over transfer tactics

West Ham manager Slaven Bilic

West Ham United boss Slaven Bilic has suggested the club's owners did not heed his advice over their summer transfer tactics.

West Ham manager Slaven Bilic before the gameWest Ham manager Slaven Bilic

The Hammers have been linked with a plethora of players as Slaven Bilic looks to reshape his squad ready for their first season at the 60,000 seater Olympic Stadium.

The former Croatia manager will also have the Europa League to contend with should they come through a qualifying play-off against Romanian champions FC Astra - who knocked the Hammers out the competition last season.

Speculation has been rife for weeks that the Hammers wanted to make AC Milan striker Carlos Bacca their marquee striker signing.

Chelsea's John Terry in action with West Ham United's Andre AyewAndre Ayew was injured less than half an hour into his West Ham debut

Instead they bid what many fans feel is over the odds to sign Swansea City striker Andre Ayew for a club  record £20.5 million.

He was promptly injured less than half an hour into his West Ham debut in the 2-1 defeat to Chelsea on Monday night.

West Ham manager Slaven BilicWest Ham manager Slaven Bilic

Cracks beginning to show?

But the first signs of cracks could be appearing between Bilic and co-owner David Sullivan - who takes a lead in the club's transfer dealings - after the former Croatia boss hinted his advice on how to operate in the window this summer was not heeded.

"I don't want to talk stories now about things that didn't happen now," Bilic told the press ahead of the Chelsea game, as reported by the likes of EuroSport.

"I said it openly, we tried to get at the beginning one of the top strikers of the moment and they opted for a bigger club and also better money of course, but at the end we bought what we wanted to, I'm happy.

"I said a few weeks ago to the chairman and Tony Henry (West Ham chief scout) that if we want to go big game fishing there are two conditions for us to compete with the big clubs - if we go early or if we put more money in.

"Then we might have had a chance, on paper, with those great ones. But we didn't do that. Then it is almost impossible to get the player."

West Ham's Sofiane Feghouli scores their third goalSofiane Feghouli looks a find

The ins and outs

West Ham have signed Norweigan midfielder Havard Nordveit, Algerian attacker Sofiane Feghouli, former Manchester United youngster Ashley Fletcher, Besiktas winger Gokhan Tore, Ayew and left-back Arthur Masuaku this summer while the arrival of Argentinian forward Jonathan Calleri on a season-long loan was rubber stamped on Tuesday.

But the club have let a number of players leave too.

Loan players Victor Moses, Emmanuel Emenike and Alex Song were sent back to their respective clubs while homegrown Hammer James Tomkins was sold to Crystal Palace for £10 million.

Speculation is also rife that Enner Valencia and Diafra Sakho could also be on their way before the window closes on September 3.

Register for HITC Sport - Daily Dispatch