We knew the transition from offensive line coach Juan Castillo to Howard Mudd wouldn't be seamless.

But was it supposed to be hazardous to the health of quarterback Michael Vick?

Andy Reid had to convince the 69-year-old Mudd he would have carte blanche to transform an offensive line composed of enormous maulers into the smaller, more mobile outfit he hung his hat on with the Indianapolis Colts. OK, beg.

And it's showing.

Players switching positions, most recently Todd Herremans,  the alternate Pro Bowl guard to right tackle.

Rookies Jason Kelce and Danny Watkins playing next to each other at center and right guard.

The regular season opener isn't far off. And a slow start by the line and guess what? Vince Young is the quarterback.

Mudd was right for the Colts. But you should know they've gotten out of the business of playing smaller, stockier and athletic guys in favor of bigger, bulkier athletic guys. They're also happy about it.

 "I think it's going to help us in the long run," Colts coach Jim Caldwell told the Indianapolis Star.

Follow Eagles beat writer Bob Grotz on Twitter: https://twitter.com/#!/bobgrotz