TAMPA, Fla. – The Buccaneers have had to shuffle their coaching staff with offensive coordinator Jeff Tedford taking a leave of absence after heart surgery.

Quarterbacks coach Marcus Arroyo has been calling the plays and the Bucs didn’t go out and add a quarterbacks coach. Instead, they might have found one from the inside.

That’s injured starter Josh McCown. The veteran has talked about wanting to have as much value as possible to the team while he’s out. He’s earning his keep by helping replacement Mike Glennon.

Some players don’t want to see their replacements have success, but that’s not the case with McCown. He was seen celebrating with Glennon on the field in the aftermath of Sunday’s upset win in Pittsburgh.

“He genuinely wants the team to succeed and he genuinely wants to see me succeed,’’ Glennon said. “He was a huge help to me all week. As a team, we’re lucky to have him. I’m lucky to have him to be with me every day and help me develop as a player.’’

The team has been guarded about the severity of McCown’s injured right thumb and when he might return. But the fact Glennon was the quarterback who was sent to talk to the media Wednesday was a pretty strong sign that he’s expected to start Sunday against New Orleans.

Although Glennon threw for 302 yards and two touchdowns and led a game-winning drive in the final minute, he said there remains plenty of room for improvement.

“I missed too many throws in the red zone,’’ Glennon said. “That’s the main thing. If I could have hit more of those, we wouldn’t have needed that drive at the end or who knows what would have happened. There were definitely some throws I’d like back.’’

The Bucs also had some issues with clock management that resulted in delay-of-game penalties against the Steelers. Glennon put the blame on himself for those issues.

“The quarterback is always responsible,’’ Glennon said. “We’re the ones that can see the play clock. We’ll get that straightened out. It’s already been addressed and won’t be an issue moving forward.’’