Spencer Rattler named starting QB ; Jay Glazer reports Rattler expected to start next 3-4 games (month) until Carr’s return

Carr is getting paid $37.5 million a year. Spencer Rattler is getting paid $1.08 million a year.

Carr is going back in the second he can. It's a financial move.

IMHO

Carr's pay is sunk cost, there is no recovering that - always play the player that makes the team better.
If SR plays well and adds "IT" to the team any good coach would start him.