's days as a walking punch line may be numbered. The 43-year-old couch-humper has hired veteran flack
to take over as his publicist. Bloch replaces Cruise's sister, Lee Anne DeVette
, who served as his rep since March '04 and was the chief architect behind his gradual descent into madness. DeVette will now head up her brother's charitable work, of which, ironically, she just became a primary beneficiary.