West Ham should be wary of the transfer window mistakes that Everton made last summer.
The Hammers have signed seven players so far this summer, with Issa Diop arriving for a club-record fee of £22m.
But West Ham made a statement of their intent soon after by smashing that figure in bringing in Felipe Anderson for £36m.
Liverpool and Manchester United are the only Premier League clubs to have spent more money so far this summer – a situation similar to the one Everton found themselves in 12 months ago.
The Toffees came unstuck after Ronald Koeman spent over £150m on eight new players, and Leon Osman sees the parallels between his former side and Manuel Pellegrini’s new-look squad.
“You hope it’s gonna be successful,” Osman told BBC Radio 5 Live.
“They’ve brought in Pellegrini to make sure that someone is really at the helm, that knows what they’re doing.
“You’ve just got to be careful bringing in all those players in one bunch. I mean, look at Everton last season.
“We brought in so many players in with so much money that everyone expected the season would be fantastic. And it was far from it.”