I would argue yes. Many will disagree with this, but let's realistically look at his tenure:
-Very poor first year in regular season, barely made the tournament but did make a great NCAA run. Lost the biggest lead in NCAA history in a championship game. If we had won that game it would be a different conversation.
-Disastrous year 2. Pre-season number 1 to unranked with great talent. Did less with more, whereas Roy Williams always managed to do more with less.
-Year 3 was solid, but lost to NC State for an ACC championship (Roy would have never lost that game) and early exit in NCAA tournament
-Year 4, despite people saying to not worry so much about the first few games, this team has Year 2 written all over it, we may barely make the tournament but don't look good.
The big thing for me is that when we play SEC schools like Alabama or Auburn, it's a guaranteed loss. We are NORTH CAROLINA and rarely ever win clutch games. We get outcoached constantly and can't beat really good teams. If he doesn't turn things around this year, I think it's time to pull the plug. Maybe give him a year 5 but the Hubert Davis era is a dramatic drop-off from the Roy Williams era.