Greene, though, wasn't willing to say he reached a comfort level.
"Other than everything, I think I just have to improve on covering my zone and reading the quarterback's eyes, and breaking at the same time," Greene said. "I think I can make myself a little bit better by making my break a little bit faster.
"It's more about the (quarterback's) delivery key and direction key, and things like that. There's a lot that ties into it, but the keys I read in order to get a good read on the quarterback should never lead me in the wrong direction."
Greene, a red-shirt sophomore, was an integral backup last season. He made 33 tackles and intercepted a pair of passes, but with the graduation of Zaire Kitchen, his responsibility and importance to the defense has grown exponentially.
At 6-foot-1, 215 pounds, Greene brings size and athleticism to the position, and can be a punishing hitter. He is teaming with Lefeged, who started 25 games the last two seasons, to give the Scarlet Knights a safety tandem that will be one of the best in the Big East.
"We haven't gotten that far into camp yet, but so far things are going pretty good," Greene said. "I know I'm being able to be coached, which is a good thing. A lot of guys have a hard time being criticized or being coached.
"I take it as anything the coaches tell me or correct me on is only going to better me as a player, so I think I'm doing a real, real good job with that."
The players voted on captains for the upcoming season and the selections were center Howard Barbieri, strong safety Joe Lefeged and defensive tackle Charlie Noonan. All three are seniors and have been lauded before by coach Greg Schiano for their work and team-first attitudes and work ethic.
"It's a great honor," said Barbieri, who came to Rutgers as a walk-on. "It shows your teammates see how hard you work and how you perform on the field."
Noonan was thrilled with the selection, and like Barbieri, said it was a tremendous honor. "It's nice," Noonan said. "I always consider myself a leader who does things by example."
Schiano announced after Wednesday's practice receiver Tim Wright is out for the season and will require surgery on his injured right knee.
Offensive tackle Antwan Lowery returned to practice after missing some of Tuesday's session with an ankle injury, but Barbieri was limited in practice.
Receiver Quron Pratt missed practice after what Schiano said he was "dinged" Tuesday.