Harris has had two returns of more than 20 yards in the last four games, and he had an apparent punt return for a touchdown nullified by a holding penalty against the Chicago Bears.
"They're doing their job," Harris said of his blockers, "and that makes my job easier. It's going pretty good right now."
Jason Garrett said Harris, averaging 9.8 on 24 returns, has been returning more aggressively the past few weeks. Garrett wants him heading upfield quickly instead of running sideways looking for a big return.
"I feel like we've made better returns lately and that has a lot to do with that unit playing together more over the course of the season," Garrett said, "and Dwayne is just really doing a good job with the returns."