Top 5 debutants in the NBA Playoffs
#4 Donovan Mitchell
What Tatum will have to do in the postseason, Mitchell already has done for the duration of the regular season.
After a couple of appearances off the bench at the start of the season, Mitchell was asked to step into the starting lineup by coach Quin Snyder. A couple of 20-point appearances went by, and then Mitchell became the de facto #1 scorer for the Jazz for the rest of the campaign.
He finished the regular season with 20.5 points per game - a tally only Carmelo Anthony has matched over the past 20 seasons among rookies. Mitchell will have to step up his game against an Oklahoma City defense that will have watched hundreds of hours of game film on how to stop him.
It's not a task for the light or faint-hearted, but I'd bet my life on Donovan Mitchell getting it done at this point.