I wouldn't mind if Musa went out on loan - still think there's potentially a good player in there and that with time to adapt (as in regular playing time, in his proper position as a striker) he could come good.
But we don't have the luxury of being able to give him that time, so it's not going to work for him here in the short term at least. But loan him out to Hull or West Brom, let him adapt to the more physical English game for a season, and he could come back a much better player. He's still young enough.
Having said that, if someone's willing to give us close to what we paid, it's much less risk to let him go!