Kosta was on the FS1 show Crowd Goes Wild so he like is the most experienced being behind a desk with a live audience. The issue is that usually the most experienced for a fill in is almost always my least favorite (Jones, Bee, Kosta). I loved Oliver and Keppler was serviceable but was still inexperienced. I don’t think Wilmore ever filled in on TDS. I didn’t have cable back when Colbert, Carrel, etc was on TDS.