The Pace signing looks better than its going to be.
The guy is old, lots of miles yada yada and he hasn't done much for St. Louis for a long time. Missed almost two full seasons and before and after his big injuries that line sucked, bad. One of the worst. Even during his injured seasons, the Rams tried to reload that O-line. They were big players for Faneca, I believe second in the running according to reports, and ended up with a lineman from Tenn, I believe. Please check my facts...

Also picked up the stud from FSU, Alex Barron, who I think was a better prospect than Chris Williams, and in the end I believe will be the better player. Barron was a monster for FSU and had a crazy sub, way sub, 5 sec 40 time. I know I know, lineman don't run straight, but its a crazy example of athleticism when you can outrun every offensive lineman, most defensive ends, and hold your own agianst a majoity of linebackers. Which brings me to another point...
Barron was brought in to replace Pace. Barron was solely a LT in college and the Rams projected him their new 'Orlando Pace' when he was drafted, but he never saw antyhing but the right side of the line. With that athleticism, Barron shouldn't be on the right side, but he was with Pace around. Not like Pace deserved to keep the spot after being injured for almost two seasons. So...what I'm getting at, If anybody thinks he's here to teach Chris Williams the ropes, should probably not have their hopes up.
Now Frank Omiyale and Kevin Shaffer
I don't know much about Omiyale so I did some research, but it doesn't look good. THis guy was basically a red shirt rookie, then his second year made his debut only to be cut a couple weeks later. He played for the Panthers in 07, yet another 'red-shirt' year, and after finally playing in 08 due an injured Jordan Gross, he wasn't welcomed back with another contract. With all of Carolina's O-line injuries, he could barely crack the normal rotation. He's only started one game, one game.
Now Shaffer is a solid pick up. He's a work horse lineman and was actually a big producer on a very successful Browns O-line. If there's one thing you'd like out of a lineman, its consistent health (Knock, Knock).
The wild card in the O-line euqation is Williams, but he's from the 08 draft, so I wouldn't put him into this offseason's moves.