India, July 6 -- The NFL offseason is underway. For many fans, the offseason is one of the highlights of the year, with trades, free-agent signings, and draft picks making headlines. Right now, the NFL is in its down period with mandatory minicamps over and training camps on the horizon. The Los Angeles Chargers are calling their rookies in less than two weeks, becoming the first squad to do so this year. Several teams have made significant efforts this year to improve their positions and fill up their rosters, as per Bleacher Report. Here's a look at five such teams.

The side brought in Josh Sweat for a four-year, $76.4 million contract. Sweat made 33 sacks over the last four seasons, not counting the postseason. The Cardinals also went...