that's great in theory, but there's no great left tackles or corner backs hitting the market that are worth a damn. I mean, who's giving you better value? Jawuan James? Donovan Smith? Cedric Ogbuehi? There's no Nate Solder's or Duane Brown's scheduled to hit the market
Hell, Seantrell might be the best one going back in to FA.
The dynamic factor he would bring to this offense that (outside of the 97 yard run) Miller hasn't brought through his 3 years here is worth paying for. Bet on Rankins and Davenport and drafting some extra big bodies to get the line right in front of them, and then unleash a Bell/Fuller/Hopkins/Thomas/Watson combo platter on to the league. That at least puts you on par as far as weapons with the Chiefs, and maybe even the Rams.
This isn't a one yr fix and Miller is more than a serviceable. Yes, I would sign Donovan Smith or Claiborne and trade for Jenkins plus tag Clowney/reup KJax with the $$$$ that you want to pay Bell.
Fixing the OL/CB is jobs 1 and 2, Bell is a luxury item.