You're right about Liza Lapira on this show, but I disagree with your reasoning.  In fact, I would use your Vincent Kartheiser theory with her, because she was delightful on the ill-fated and miserably titled "Traffic Light."  Her comedic timing was the best on the show.

Really pulling for Dale.
Although, we did see a glimpse of old Dale sneak through the new Zen-Dale.

Luke's a senior…
…right?