Ahrens is a piece to this team, not a must. There are times when Holtman has benched Liddell and Sueing because the people on the floor have been playing well. I think Holtman adjust depending on the style of game and who is hot.
Just watching the second half, Liddell looked shot, just worn down. And it was noted that Sueing had been dealing with a sprained ankle. Sueing hasn't looked the same over the past few games, IMO getting him playing at a high level again is far more important than Ahrens.