The Parkside Group announced it hired Brennan as a president, adding him to its small but well-connected roster. Brennan was a commissioner for the Community Assistance Unit. Brennan also ran political and field operations for Bloomberg’s re-election campaign in 2005.

Brennan, incidentally, is one of relatively few Bloomberg staffers to have left, despite that fact that the mayor is a lame duck who is -- ostensibly -- not running for higher office at the end of his term.