If you look at Keisel's snap count, which I'll be happy to research, I don't think you will find that in his first three full seasons he played significantly more than the 264-270 snaps that McClendon and Heyward played last year...

With Keisel, while he has developed into quite a good player, he didn't move Kimo out of the way...Kimo moved on...

The same thing with McClendon...Hampton moved on...

The same thing may very well happen to Heyward....the Steelers have cap issues and Keisel is in the last year of his deal....

Hood didn't move Smith out of the way...injuries did...

I'm not trying to take anything away from Keisel...the fact that Keisel is good doesn't make Heyward a bust...

Just as the fact that Hood is starting doesn't make him great...