Beverly Hills, Calif. ? The ABC fall schedule is “locked and loaded” and won’t be changed despite a management shake-up, the network’s new chief said Sunday.

Paul Lee, noting he’d logged just 36 hours so far as ABC Entertainment Group president, said “you can do more damage than good” by making last-minute changes.

Lee, 50, was put in charge Saturday of the ratings-challenged ABC broadcast network and ABC Studios after last week’s abrupt resignation of Stephen McPherson. During a Q-and-A session with the Television Critics Association, Lee was guarded about his predecessor’s departure but willing to praise the schedule he left behind.

Lee, who as head of ABC Family invigorated the once-flagging cable channel, is in charge of development, programming, marketing and scheduling operations for ABC Entertainment.