I think Baker is well worth the risk. Has the pedigree, the confidence and leadership. Young enough to be the future. Him and Stefanski had butted heads for a while, hard to work well when that happens, in any work place.
Reich has managed literally every QBs turnovers when they have come to the Colts, I think he could do wonders with Baker.
For everyone saying no, there really isn't a higher upside option out there. Of course its not 100% it works, but you have to take a chance. If he tanks, we miss the playoffs again, end up with a top 12 pick in a great QB draft.