As for playing Lewis at 2nd base, it's what the Twins do.
They believe anybody can play anywhere.
Which, of course, is literally true.
But then we can't be surprised when they play crappy baseball. Nor can they.
IMO good organizations--good managers--don't ask that from their teams.
Margins are small at the MLB level. Not making plays that could and should be made will get you beat pretty often.