Sign. So predictable. At what point is a team no longer "young"?

They’ve played 17 games together and frankly they seem to be regressing. The U.K. Win and the win over the deplorables seem to be the outliers
I don’t know what the answer is and I don’t know whom we’d get that would be an upgrade to Larry but he’s the guy in charge and at some point shouldn’t he be accountable ?
My sibling is worried ( last time we conversed was November) that they U will cut him loose if there isn’t marked improvement this season seems we were picked 9 or so in the league and as the announcers always point out his teams finish better than predicted