Quisling, I feel that Ding's team was probably more formidable than on-site footage portrayed. I only noticed Rapport and an older Chinese GM whose name I didn't catch, seemingly of the Ye Jiangchuan generation . IMO China has a big state-sponsored chess machine, and several strong GMs (e.g Wei Yi, Wang Hao, Yu Yangyi) might have been requisitioned. IIRC, most of Carlsen's team (Dubov, Gustafsson, Fressinet, van Foreest) worked off-site and communicated via Skype or otherwise.
I'm surprised Nepo didn't name Péter Lékó among his seconds during the press conference. I assumed PL, who worked for Nepo during the Carlsen match, was still in the team.
I have a feeling that in this engine age, the credentials of seconds aren't as important as in the old days (Nakamura's long-time helper Kris Littlejohn is only an FM). But having advisors with WC match experience (Kramnik and possibly Lékó) should have been an advantage for Nepo.
Ian has to kick himself for making blunders while playing too fast. Happened repeatedly during the Carlsen match and maybe even more vs. Ding. He must have been coached not to do it again, but the training clearly didn't sink in.