I have not written TR off.
While RGIII is in a discussion of who the best QB is (RBIII, Luck, Keenum, Moore...), Trent is looking to see if there is ANYONE who can bring a similar arguement...more clearly superior for his position.
Then there is the point that TR was supposedly holding a lead.
I saw a good performance from RGIII, but TR finished with a career-best day, on the road.
TR had the lead and there is nothing to justify dropping him.