Terrance Williams in the mix at No. 3 receiver

OXNARD, Calf. -- The Cowboys drafted Terrance Williams in the third round with the objective of slotting him in as the No. 3 receiver.

After the Cowboys let Kevin Ogletree go in free agency, it meant Dwayne Harris could emerge at No. 3 on the depth chart. That was before Williams was drafted and created more competition at the wide receiver position.

"If it turns out that way, it turns out that way," Williams said. "We're just a group of receivers trying to get better day by day. A coach has to make the choice between me, Cole [Beasley] and Dwayne. So whichever one gets it, I'm just trying to be the best teammate I can be."

Williams got off to a slow start this camp. There were a few drops, and it seemed he was a little behind in the speed-of-the-game department. It's an adjustment most if not all rookies make when they enter the NFL world.

Williams, a speedster at Baylor, needs to translate that speed to the NFL. In the last two practices, Williams has practiced better with crisp routes, making hard and easy catches and of course getting open.

"It's just sometimes I go from the mode of just going from 75 percent to 100 percent," Williams said in regard to how fast he goes. "Now I'm paying attention to what the coaches are telling me to do, and that's 100 percent straight off the ball, and its helping me out a lot with the timing and the speed of the game."

Understanding how quarterback Tony Romo needs things when running the offense is equally important. In the Cowboys timing-based offense, Romo often throws the ball to a particular spot on the field and expects the receiver to get there. The back shoulder fade is a route where this happens a lot. Romo threw a touchdown pass to Anthony Armstrong on this play during Friday's practice. There are other times Romo throws a quick slant and the receiver has to be at that spot.

"He's looking to throw a ball at a spot and I have to get to that spot before guys like DeMarcus Ware and Jason Hatcher get to him," Williams said.