If we're not worried about fit because we're not there yet then I project a few of the players that should be available will be better than Murray... undoubtedly if Murray is there he'll have the highest floor but if he's there with Sharpe, Daniels or Sochan and we're not only looking at immediate impact I think all three of those guys are better players than Murray... one of them we could probably trade back and still get, along with potentially another player or future draft pick. But really this is the inexact science of the draft and prospect evaluation.
I agree that we should take BPA but is that the best player today or the best player over the lifetime of their contract? If you see two players with a negligible difference in their level of play or potential level of play, at that point do you worry about projected fit? It's tricky stuff and it's why people, way better at it than me get it wrong all of the time. Sometimes when you don't worry about fit you never even have the chance to know just how good a player is or could be because the fit doesn't allow them to show what they're capable of or grow into their potential. Murray obviously wouldn't be a terrible choice and he might even be the right choice but given those other guys, he definitely isn't the sure fire best choice, that's a rare thing in the draft.