Fisher is going to do it his way.
If he had Wentz or Prescott he would still be starting Keenum
Goff may be a bit behind Wentz initially as he came from a spread offense and Wentz came from a pro style offense. That however does not mean Wentz will be bettter long term.
Keenum at best allows us to win ugly, he has trouble picking up the blitz, misses the open receiver, and has little intermediate accuracy. Maybe he is in there for a few more games.
At 2-1 there is a little less pressure to start Goff. I think Fisher would like to wait until Game 5 or 6.
I expect they would like to get him in there just to get his feet wet if we are in a blow up.
One really bad game by Keenum will force the change. Right now Fisher can live with he really didn't suck that bad if we are winning.