2015 Green Bay Packers training camp preview

The Green Bay Packers will open training camp on July 30 in Green Bay, Wisconsin. Here's a closer look at the Packers' camp, which wraps up on Sept. 2:

Top storyline: This will be the first year in coach Mike McCarthy's 10 seasons as head coach that he won't call the offensive plays. He passed on that job to Tom Clements after the NFC Championship Game collapse in Seattle. So it will be interesting to see whether McCarthy remains at quarterback Aaron Rodgers' side throughout practice as he has done in the past. Most likely, the change will allow McCarthy to roam around more during practice and spend more time with the defense and special teams as he did this offseason. The most important thing that happens this summer might not occur on Ray Nitschke Field. Yes, there are roster spots to be won in practice and in the preseason games but in the big picture, it's more important that this team overcomes the mental side of what happened against the Seahawks.

Position battles to watch: There's a starting cornerback job wide open thanks to Tramon Williams' departure in free agency. At this point, it looks like a three-man competition between veteran Casey Hayward and rookies Damarious Randall and Quinten Rollins. Hayward appeared to be the favorite to win the job when the offseason began, but he missed all of the OTA and minicamp practices because of a foot injury. Randall, the first-round pick, and Rollins, the second-rounder, both showed enough in the offseason practices to think they're serious contenders for the job.

Veterans to watch: If the Packers are going to play Clay Matthews at inside linebacker as much as they did late last season, then they're going to need someone -- whether it's Nick Perry, Mike Neal, Jayrone Elliott or Adrian Hubbard -- to make a bigger impact than they did last year. Elliott and Hubbard both got significant practice time this offseason because the oft-injured Perry and Neal were sidelined with -- what else? -- injuries this spring. Perry and Neal both need to overcome their availability issues and make bigger contributions this season.

Rookies to watch: In some ways, there's actually more pressure on fourth-round pick Jake Ryan than any other rookie to contribute early on. If the inside linebacker shows he can play right away, it would allow defensive coordinator Dom Capers to use Matthews more at his natural outside linebacker spot.

Bubble watch: If there's a veteran on the hot seat, it's punter Tim Masthay. He struggled late last season and for the first time since he won the job in 2010, the Packers have another punter on the roster. They signed Cody Mandell, who was with the Dallas Cowboys for part of the preseason last year.

Schedule change: In the early days of McCarthy's tenure as coach, his training camp schedule was filled with night practices. But he began to phase those out over the past few years and this year there isn't a single practice at night other than the Aug. 8 Family Night event at Lambeau Field. Most of the practices are either early morning (8:20 a.m.) or around noon.

For daily updates at camp, check out the Green Bay Packers clubhouse page.