Upgrade my linebackers?

I didnt have time to research IDPs before this years draft, and ended up with Bowman, Malcolm Smith and Jerrell Freeman as my linebackers. That should be ok in a 12 team league where we start 3 linebackers, but there are some interesting options on the waiver. Should I drop Smith or Freeman to pick up Brandon Marshall, Denzel Perryman, Deone Bucannon or Mark Barron?

Thanks!

As long as Bucannon is listed as a Db he's my favorite player to draft under the radar and Baron is in the same hybrid roll

Ah forgot to mention that we don't start a full IDP roster, just 4 defensive flex spots, so position doesn't really matter.

I really like Perryman this year. There's more risk because he hasn't yet played a full season. But I think he can easily put up LB1 elite numbers. I like Brandon Marshall as well. Bucannon and Barron I think are maxed out on their potential and I see as solid LB2s. Smith had a great year last season but I think he comes back down to earth and Heeney starts stealing away share.

So, drop Smith and Freeman, pick up Perryman+Marshall? Done, Thanks!

That's what I would do.