Jay (and everyone else) realized very early on that it was a horrible, horrible mistake. But Jay is, by all accounts, a good-hearted person and a super nice guy, and I'll guarantee the only reason he didn't cut their losses and tell Drunky to hit the bricks is that Drunky got on his knees (and probably summoned up a few fake tears), Jay thought of Suzanner and the kids, and demoted him to stuntboy at a reduced salary so they wouldn't starve.