West Ham boss David Moyes is wary of asking too much of January signing Jarrod Bowen.
Bowen was one of three players brought in during the January transfer window as the Hammers prepared for a fight against relegation, arriving from Hull for £25m.
Moyes says it would be unfair to put pressure on a signing who has just moved from the Championship to the Premier League.
Moyes said: "I've got to use my experience. Players like Leighton Baines and Phil Jagielka took six months to settle into the Premier League, but others like Tim Cahill made an impact straight away.
"I'll assess Jarrod and see where he is at. I want him to be for the long term. If we are signing a player from Hull and hoping him to be a saviour, I think that's unfair, but he's looking very good and very sharp."