The rest of the season isn't pointless really.
Carver isn't going to 'make' any of the current players a more valuable asset to then flog in the summer is he?
They'd be better off getting someone in now, at least then they have a chance to increase the value of saleable assets such as Perez during the next few months, finish slightly higher up the table (not too high mind, none of this Europa League shite) to increase the TV/PL money too. Not forgetting Season Ticket renewals that happen to be at the end of January - which fetches in a nice continual revenue stream.
Makes more financial sense for them to appoint half decent ala Southampton model - as soon as possible imo.
Great opportunity to do so.
Will they?
Doubt it.
***note this is purely from the clubs perspective obviously.