Williams has maintained the No. 3 spot in training camp, but Harris isn't giving up the fight for playing time.
"It's definitely going to be a hard decision," Williams said of who will be the third receiver. "T-Will is a good player. He's got some of the same attributes Miles (Austin) has."
As the No. 4 receiver last season, Harris caught only 17 passes for 222 yards with one touchdown in his second NFL season. But Harris made his mark on special teams. He averaged 16.1 yards per punt return and had a 78-yard touchdown return.
But that was last season.
Williams has dazzled coaches during training camp practices with his speed and ability to make deep catches. With defenses designed to take out Dez Bryant and Austin, Williams is likely to see more man coverage.
Harris understands why the Cowboys drafted Williams, but he doesn't want to be a forgotten man.
"We got guys who can play, and that’s what you want," he said. "They didn’t draft him just to sit around.
"Wherever I fit in with that group, third or fourth receiver, it's whatever. I'll do what I can on special teams. We're all competitors, and that’s what we come to do every day."
When he's not fighting for playing time, Harris, a native of Stone Mountain, Ga., has been spending time embracing the Dallas community. He conducted a kids football camp in South Dallas and reads books with kids.
"Just giving back to the community when I can," Harris said. "There are a lot of kids that don't have a lot in their communities, and I want to give back to those kids. It means a lot to me to go out into the community and give encouraging words to people."