I can see where you are coming from but it is a very risky move.
Players have to respect their manager. If a temp comes in who they don't get on with or like they can either rock the boat, engineering a move away, or simply not play to their full potential.
We're doing the next best thing. We're hiring a full time manager who will probably only last a season or two. He will sign a few prospects and keep the club stable. It's not what everyone wants to hear but it is the best solution to the problems we are facing in the short term.