Actually we know what Newton is and they are going nowhere with him
I would rather take a chance on a QB who is unknown even if it is unlikely he is going to be good.
I will take the unknown over the known which leads to nothing worth a damn
Sounds nice in theory but it is week 10, there is no one in the world available that you would reasonably want to take a chance on. It isn't 1999 and you're gonna find the next Warner.
You got veterans on the team on both sides of the ball, their D has played pretty well this year, good RB/WR with CMC/Moore, to just bring in some unknown or go with PJ Walker and punt the season is a little tougher than it sounds. They're a half game out of a playoff spot.
NE did same thing with Cam last year, obviously knew he wasn't gonna be the guy at that point and got a QB first chance they could but week 10 it is tough to sit a serviceable veteran for a random unknown when you got guys on the team trying to develop, proud veterans, trying to establish winning culture. It isn't a video game simulation.