Brackett and Estes were free agent pickups not long after the season was over and Rowe was an undrafted rookie last year who spent the season on the team's practice squad.
Williams, though, is the big name of the group. He was the team's second round pick in 2011 and showed a lot of promise. However, he suffered season-ending injuries each of his first two seasons in the NFL.
He was healthy for most of the offseason, but had his surgically repaired knee flare up during training camp and it held him out for a while. He made the roster, but was inactive for all 16 games -- the only player to be inactive for every single game.
The move saves the team a little over $1 million against the salary cap. Williams will account for $535,000 in dead money.
The move opens up a spot on the team for a running back to make the roster, perhaps one of the two reported undrafted free agents that have joined the team.
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