The long recession has hit just about every employment sector with one glaring exception -- IT. There you will still find a seller's market, and if anything it is becoming more so.
While I agree that there is an undeniable shortage of IT staffers, there's even a greater shortage of folks that understand how to apply technologies, say converged cloud computing, with business process for the types of competitive advantage expected today. Perhaps, the IT staffers of the future are well-rounded business execs with technology skills.
(note: I work on projects sponsored by EnterpriseCIOForum.com and HP)
I think this is relative to the specific market in question. Data I've seen supports the opposite with IT unemployment rates in 2012, albeit not as bad as other sectors. Washington post recently covered this as well...or at least from what the data shows.
Forgot the reference - found the article here "IT jobs unemployement rate falls further".
Perhaps the conversations with CIO's then eludes to that either the demand of skill sets sought is in low supply (thus to many fresh graduates in the market), or the temperment of the IT market is such that the current state of the economy IT professionals feel more security by retaining their current employment, and not jump to new organizations in such an unstable market.
It's definitely a skill set issue. Data center admin is not a hot job. The positions we hear are in demand are business/big data analysts. mobile app developers and cloud architects...and other positions similar to those.