Good squad player to bring on and if it didnt work another Championship club will come in for him to score the goals for them to get promoted perhaps Fulham or Brentford.
If we do not sign Murray either now or in the summer there is always the thought that some other team could do with him what I think that we should do with Rhodes. Buy him now, have his goals get us promoted then sell him on to do the same again for another club even if we took a slight loss...
The big advantage to buying him now is to stop anybody hijacking the move in the summer.
IMHO we should do that as even if we get promoted he will be a good strong member of the squad.