First off, CJ is borderline ******** and a cancer to a team. He is extremely talented but despite his talent, the Titans have been no better than average since his arrival (overall). He is too selflish to put on a team full of guys that work together.
As for the comparison with Faulk... the Colts believed they were getting a better back, a back more versatile for their offense, and nearly gave Faulk away for 2nd and 5th round picks. Considering what CJ would want in free market, his trade value is probably signficantly less than even Faulk's was but I don't expect the Titans to give CJ away like the Colts did despite the fact that if he can get $13 mil a season, then that is his free market value... not $13 mil a season AND a #1 pick... this is why I don't understand why teams trade for players then sign them to huge deals...it's terrible business.