Upon Further Review: Buccaneers Week 13

CHARLOTTE, N.C. -- A review of four hot issues from the Tampa Bay Buccaneers' 27-6 loss to the Carolina Panthers on Sunday:

The Schiano Watch: During a three-game winning streak, it appeared as if coach Greg Schiano's grip on his job security was getting stronger. But an ugly loss to Carolina put Schiano firmly onto the hot seat. The reality is he's won only three games, and that's not enough. With just four games left, Schiano needs to finish strong to have any chance of keeping his job in 2014.

Glennon's rough day: The knock on quarterback Mike Glennon coming out of college was that he wasn't mobile enough to play in the NFL. Glennon had done a reasonable job of dispelling that thought -- until Sunday. He was sacked five times and intercepted once. Put some of the blame on the offensive line and give Carolina's pass rush some credit. But it's also worth pondering if Glennon is mobile enough to be truly successful.

No running game: Schiano prides himself on a basic formula that starts with running the ball well on offense. But the Bucs didn't come close to doing that against Carolina. With the Panthers daring Glennon to beat them, they devoted most of their attention to stopping the running game. That worked nicely for Carolina. The Bucs netted only 16 rushing yards in the first half. Bobby Rainey had some success in the second half, finishing with 63 yards on 17 carries. But the Bucs need to run the ball consistently well for their formula to work.

Revis' injury: For the second week in a row, cornerback Darrelle Revis went down with an injury. Revis, who was listed as questionable for the game with a groin injury, had to leave the game in the third quarter. Revis injured his shoulder and chest attempting to intercept a pass intended for Steve Smith. After the game, Schiano didn't have any update or details on Revis' condition.