7) Project Management
Geeks make bad project managers. Recall they are thing- not action-oriented. They do what they must to get it done. The actual doing is an ordeal to be endured and minimized. Only the essentials matter, but the technical essentials must be done right: they cant be rushed. Coordinating other people, ensuring all the bases are covered and everything fits together, driving for deadlines, coping with adversity, expedient adjustment, keeping records, reporting and analyzing these are not geek skills. PMs are a specialized group of unique people: hire them.
There are those who make things happen, those who watch things happen, and those who say what happened? Do not expect geeks to be attuned to corporate politics, or even to know what is going on in the business at large. Make sure their manager is filtering their communications and proposals. A geek will demand a new SAN just as the business reports earnings 50% below estimates, or complain that the team is under-utilized and not appreciated just as layoffs are being planned, or tell the new CIO who moved across from Finance that the users are idiots and never know what they want anyway.