1.RG .....has sat out a year after playing badly, and the year before mostly out with injury.
Has one really bad knee/ leg, and similar to Romo 1 bad hit on that knee, he could be done fore the year.
RG hAd 1 good year , back when he ran the ball good and a lot.
After coming back from that injury, he was Just mediocre.
HIs passing was never that great, and under JG he would flop.
2. JF......Is undersized for a QB, and not a great runner, but can scramble and run.
So far the best JF has done is mediocre. he has hit some long TD passes, and ran for a TD or 2.
Under JG he would flop.
I think both QB's need a team and HC and OC that would devise a offense specifically for them and what they do best.
If that happens either one might be pretty good, but they are not going to fit into most NFL Offenses.
So bottom line is with JG and Linny, RG and JF would be not better or different than Cassel and weeden, and Moore.
-- edit.... well they would be different in that either one could run with the ball
better than the 3 dallas played this year. but that is it , and I just dont think
that would help enough to Say they could be bkups who can win .
Although they maybe could win more than what dallas did in 2015 with bkups
dallas would be hard pressed to do that bad again with any qb, but
with JG here who knows,