Two, if they put the felon back in, he will at a minimum continue to demonstrate how ineffective he is and, in effect, worsen his potential and chances for duping another NFL team into signing him if and when the Eagles let him go.
Three, it will further demonstrate how the walrus talks out of both sides of his mouth. He has already said that even when vick is healthy and returns that Foles will remain the starter.
Of course I'm opting for #1, but I'm a little biased. LMGDAO