Mark Dondero (@MarkDondero) and Ben Kichen feel the Celtics should be in the finals right now. The number one problem with the Celtics is the mentality of Jayson Tatum.  What happens with Jayson Tatum at the end of games?  Jayson Tatum gets nervous a lot. The pressure was more on Celtics than the Heat this series. Jayson Tatum didn’t attempt a three pointer till the end of the first half of game seven.