Perhaps that's because he's actually getting practice with the first team, something that never happened under Gruden. BTW: this happened in less than two weeks, so strange how improvement comes when you're practicing against and with first teamers. Gruden didn't want him, and he certainly didn't want to be forced into playing him because the team grew increasingly confident in him as he improved week after week after week at practice. This truly answers all questions about Gruden's "_______, (not Haskins) gives us the best chance to win" stance, since it's clear now that Dwayne wasn't given the opportunity to impress his coaches or teammates in practice.
It worked out well in that Dwayne didn't get a start, but the cost of that was little to no improvement in an already talented football player.