I dont get why people say we gave up 3 starters. Two of the three were not starters in a .500 Jazz team and only reason they became starters in a Lakers team is because Lakers were absolute trash behind Lebron and AD evidenced by their record at the time of the trade. They likely had the worst record ever held by a team with 2 superstars playing at a superstar level.
So far that dynamic duo has played 10 games with the Lakers averaging 24 minutes (Vando) and 26 minutes (Beasley):
Vando has 7.7 PPG / 8.2 RPG with team 9th 0.2 BPM (negative BPM in 6/10 games despite Lakers being 7-3 during that stretch).
Beasley has 12.2 PPG with 11.7 FGA and 38/34/62 splits
Vando is also defended by no one which enables him to produce more than he should (both points and boards). Lakers can handle that since AD and Lebron can beat double teams and both have the awareness and ability to pass the ball to Vando when he sneaks in through the backdoor. But literally anyone can do what Vando does offensively for them... so him being useful is more about his effort and ok defense.
Imagine those two guys being upgrades to your team...