The dfeenisve matchups are ging to be fascinating just looking at the starters I'd say you go
Thies vs Bam
Brown vs Butler
Tatum vs Dragic
Kemba vs Crowder
Smart vs Robinson
Why? Well The big man matchup is obvious, I guess you could put Brown on Bam some but then you have Theis guarding perimeter players which takes him out of position to protect the paint. Smart could take Butler but big wings are typically the only player type smart doesn't do great against, Jaylen has the strength and length to compete with Butler. The last three are hard, you could probably g an number of ways. You coudl try Smart on Dragic if Tatum ends up not being able to handle him (like we did with Lowry second half of the series), but to start Smart is probably your bets at getting threw screens which makes him useful on the shooter Robinson and Hero. Then "hide" kemba on their least talented offensive player Crowder.