Megson said, "We've got an agreement with West Ham but we're also looking at other players in that position.
Calum Decision Soon
"We've also got another player that we're close to coming to an agreement with, so it's decision time.
"We may get accused of messing somebody about but we've got to do what's right for the football club.
"It still may happen that Calum joins Bolton but we'll need another 24 hours before we decide what we're going to do."