Well, for better or worse, he's the chap who's now in charge of marketing at RIM. The choice may seem a bit troubling, but it's hard to imagine that it would be easy to recruit top grade executive talent when RIM is clinging to a much-delayed BB10 as its last hope to keep from sinking like the Titanic.
Mr. Boulben was originally erroneously referred to as RIM's new CFO. He is actually the new CMO. RIM defends his track record at LightSquared pointing out that he won 40 contracts in under a year, before LightSquared ran afoul of the FCC and USAF.
Sources: RIM , , NeoWin