Adrian Peterson, Mike Wallace give Vikings strong offseason grade

With offseason workouts and minicamps in the rearview mirror and training camps just a few weeks away, we assess the Minnesota Vikings' offseason moves and assign a letter grade in the video above.

Best move: The Vikings made a few moves to put themselves in playoff position for 2015, but the strongest one wasn't a transaction at all. They got Adrian Peterson back in the fold after an eight-month absence and got the running back to put aside his concerns about returning to Minnesota and show up for OTAs. Peterson's relationship with coach Mike Zimmer was a major factor in his return, and his presence should give quarterback Teddy Bridgewater some more forgiving looks from defenses in 2015.

Riskiest move: The Vikings didn't go out on a limb with many of their offseason moves, but their trade for Mike Wallace could carry some risk. He is due to count $9.9 million against the cap this season, and he was available for a fifth-round pick after clashing with coaches in Miami. Wallace seems to be a better fit in the Vikings' scheme than he was in the Dolphins' offense, and running backs coach Kirby Wilson, who worked with Wallace in Pittsburgh, vouched for the receiver. But if things don't work out this season, the Vikings could face a tough decision on Wallace, who is due to make $11.45 million in 2016.

Competition in the secondary: Even though they had the seventh-best pass defense in the league in 2014, the Vikings felt they needed to address the cornerback position. They signed Terence Newman, who will be 37 this season, to a one-year deal, and they spent the 11th overall pick on Michigan State cornerback Trae Waynes. Newman heads into camp looking like the starting left cornerback, while Waynes will get some time to develop, but the Vikings' moves suggest they weren't satisfied with Josh Robinson and Captain Munnerlyn, who were both inconsistent in 2014. The Vikings' cornerback depth figures to bring plenty of training camp competition to the position.

Training camp outlook: The Vikings will get to work a week earlier than most teams in the league this July, thanks to their slot in the Pro Football Hall of Fame Game in August. The development of Bridgewater, in a season in which he should have plenty of weapons, could ultimately dictate whether the Vikings make a playoff push. He'll have plenty of time to build a rapport with a talented but unpolished receiving corps.