John McClain @McClain_on_NFL
Texans have Mike Vrabel to coach LBs and Bill Kollar back for D line. O'Brien said he will announce staff when its complete.
Pepper Johnson coached D line and LBs with Pats. Was on staff with Bill O'Brien and Crennel. Coached Mike Vrabel.
There's speculation in New England that 14 year def assistant Pepper Johnson resigned so he could be reunited with Romeo Crennel.