Exterior defense - is that their defense outside the building? (sorry, couldn't resist).Their exterior defense is just terrible, so they will continue to lose to teams that can shoot.
But I know what you mean. AJJ apparently got ejected last night (https://www.jsonline.com/story/sports/nba/bucks/2025/01/02/bucks-andre-jackson-jr-ejected-for-slapping-nets-center-nic-claxton/77417870007/) and without him, they don't have anyone who can defend quicks/wings. Cam Thomas goes for 24 (though 8-22 from the field) but Cam Johnson goes for 26 (10-16, including 6-10 from 3P).
Also in the game, MIL went 19-28 from the FT line (Giannis was 3-10); BRK goes 25-28.
Doesn't seem that difficult to me. MIL doesn't have a lot of room for error. Giannis has to play at an all-NBA level every night and one of Dame/Khris have to bring their A game or they will have difficulty outscoring the other team. Last night, looks like Giannis played his part (other than missed FTs) but Dame went 6-20 (including 4-13 from 3P; you know he's not getting any value on the other end) and Khris went 6-11 but 0-3 from 3P and 0-0 from the FT line).Hard to know what to make of the bucks, after a loss tonight to Brooklyn.
Maybe MIL can get their Big 3 play at an "A" level night-in-and-night-out for a couple of months at the end of the season, and if they do, they will definitely be a tough out for anyone. But nothing we've seen thus far suggests that is going to happen.