I think RG and RT are question marks right now and we have no competent depth currently in place.

I feel fine about: Robinson - Norwell - Linder

But the right side is unknown.

Parnell's cap hit at RT is 6 million. He's been solid to good at the spot except when banged up or facing speed rushers.
Opposing coordinators have a bead on that weakness now and they slide speedy guys over there to challenge him more often. Releasing him for cap consideration and drafting a tackle that handles speed more adeptly is certainly worthy of consideration. Who knows if he's back or not?

Will Richardson is a complete unknown entity and we have no clue where the staff sees his development or potential use.
They may plug him in at RG to replace Cann (who may or may not be res-signed as he hits free agency) - or they may really expect him (Richardson) to compete for Parnell's job. They may see him as a longshot to start but he represents good depth. We have no idea.

I'd absolutely without doubt draft an offensive tackle who has the ability to slide to guard (if needed) early in the upcoming draft.
Give yourself a chance to get the best five guys out there and add to the pool of talent from which to select them.
I'd make this happen prior to the third round if I were calling shots.

Beyond this - I'd attempt to re-sign Shatley and Wells cheaply if possible for depth, while adding a late rounder and an UDFA or two to cultivate more depth.

Based on the late season games, I'd not have Reed, Walker, Omameh or Flowers anywhere near my training facility in July.

---