I've only played enough of a few architects to chime in.
Of Tim Liddy's I don't know that I would call any of them clunkers, but I have a few that don't suit my eye. Cambridge probably being the most obvious example. But to be honest they were in the middle of a grass change and had just been through some heavy rains. So I should give it another chance.
For Pete Dye, there are a few clunkers in the Indy area in my opinion. Sahm Park and Maple Creek are the first that come to mind.
Perry Maxwell had more than his share. It is weird how I can easily put his work into 4 distinct categories. The great stuff is among the best ever, but the lows are pretty low. I think in his case he was doing what Tom Doak was talking about earlier. Taking jobs because he needed to and not because he was in the position to choose.
After those three I don't know that I have seen enough work by any other architect, except perhaps Ross now that I think about it, but none of the ones I have seen would fall into that category. Some of it is very overrated, but not in clunker territory.