They don't, and he would not be an improvement defensively over Happ. Maybe if the Cubs have Morel focus on a single position going forward (similar to what they did with Happ in LF), he could develop into a passable fielder, but they haven't shown a willingness to allow him to stick with a single position. Not only that, he has struggled on offense for much of the second half, so he is no longer forcing his way into the lineup. All that to say, I don't see a world in which Morel in LF is a better option than Happ. Definitely not now, and probably not in the future either.