The Tampa Bay Buccaneers have said repeatedly that they're talking to teams about possibly trading Mike Glennon, but no one knows how close they are to making that a reality.
We are getting more and more hints that it's a serious possibility, though. There's the fact that they kept a third quarterback on the roster for all of last season in Ryan Griffin, something very few teams do these days. And now reports are coming in that they're working out quarterbacks as well. Stanford's Kevin Hogan told Sirius XM that the Bucs worked him out, while they've also worked out Arkansas quarterback Brandon Allen, per Greg Auman.
Some of this may be just your generic due diligence that any team does, but it fits with all the Glennon trade rumor rumblings -- which have, incidentally, died down a little in recent weeks. I wouldn't be surprised to see the Bucs trade Glennon for a pick, and then draft a quarterback to replace him just a little later.