Not long after Jonathan Goodwin officially signed with a team he used to play for (the Saints), one of the founding members of the “Tony Montana Squad” has rejoined the 49ers — according to his agent, David Canter.

Costanzo made quite an impact for a guy who only played in San Francisco for one season and only played on special teams. He signed with the Bears and stayed there for two years. He didn’t see any time at inside linebacker with the 49ers, but he saw 61 defensive snaps over two seasons in Chicago.

An opportunity to play a little middle linebacker could present itself in Costanzo’s second go-round with the 49ers, though he’d had have to beat Michael Wilhoite, Nick Moody, Chris Borland and Shayne Skov for the chance to play next to Patrick Willis.

Just spitballing, but this signing could have something to do with the 49ers’ suddenly deep receiving corps. Last year their main special teams coverage specialists were C.J. Spillman, Bubba Ventrone and Kassim Osgood, who caught one pass for 17 yards all season. Five receivers are probably locks to make the squad — Anquan Boldin, Michael Crabtree, Stevie Johnson, Quinton Patton and Bruce Ellington. Brandon Lloyd is the wildcard, and if he impresses the team throughout OTAs, minicamp and training camp, the 49ers might have to part ways with a core special-teamer.

The same goes for C.J. Spillman and Bubba Ventrone, two safeties better known for chasing down punt and kick returners. The special teams competition should be an interesting one in the coming months, something we’ll see pretty much across the board after the team made a dozen draft picks and made signed several intriguing undrafted free agents.