I tried googling this info but struck out. It seems like the list of rookies who have (a) led their team in scoring, and (b) whose team made the playoffs has got to be pretty short. Assuming Donovan does that with the Jazz, he'll be in rare company.
I've had to think of players and manually look up the info about them and their teams, but I'm out of time now so I'm turning to crowd-sourcing via Jazzfanz. Here are the ones I have found so far; if you can add to the list, please copy and paste the whole list into your post and insert your player(s) chronologically. Feel free to add any interesting info I may have missed about other notable accomplishments.
Interestingly, some players I looked up who DIDN'T make the list were:
* Oscar Robertson, Cincinatti Royals - won ROY after averaging a crazy 30.5 ppg, 10.1 rpg, and 9.7 apg in 1960-1961, but team didn't make playoffs.
* Wes Unseld, Bullets - won both ROY and MVP in 1968-1969 (crazy!) but only finished 5th on his team in ppg
* Magic Johnson (team made playoffs, but third on team in ppg behind Kareem and Jamaal Wilkes; named all star game starter but didn't win ROY due to Bird)
* Hakeem Olajuwan (won ROY, Rockets made playoffs, but finished 2nd in ppg behind Ralph Sampson)
* Allen Iverson (won ROY, led team with 23.5 ppg, but 76ers didn't make playoffs)
* Shaq (led team in points with 23.4 ppg, won ROY, but Magic finished 41-41 and didn't make the playoffs)
* Tim Duncan (won ROY, team finished 56-26, but was second in ppg behind David Robinson)
* Damon Stoudamire (won ROY, led team in ppg, but Raptors didn't make playoffs)
* Blake Griffin (led team in ppg, won ROY, but Clippers didn't make playoffs)
* LeBron James (won ROY, led team in ppg, but Cavs didn't make playoffs)
---
The (probably incomplete) list:
1959-1960 - Wilt Chamberlain, Philadelphia Warriors - won both ROY and MVP (crazy!), averaged 37.6 ppg and 27 rpg (crazy!). Warriors finished 49-26.
1968-1969 - Elvin Hayes, Rockets - not only led team but also led entire league in scoring with 28.4 ppg, team finished only 37-45 but still made playoffs. Interestingly, didn't win ROY because of Wes Unseld, see above.
1969-1970 - Lew Alcindor (aka Kareem), Bucks - led team (and was second in the NBA) in scoring with 28.8 ppg. Bucks finished 56-26. Made all star game and won ROY.
1979-1980 - Larry Bird, Celtics - led team in points with 21.3 ppg; Celtics finished 61-21. Won ROY and made the all-star game.
1984-1985 - Michael Jordan, Bulls - led team in points with 28.2 ppg; Bulls finished only 38-44 but still made playoffs. Jordan won ROY, and also made all-NBA second team.
1989-1990 - David Robinson, Spurs - led team in points with 24.3 ppg; Spurs finished 56-26. Won ROY.
I've had to think of players and manually look up the info about them and their teams, but I'm out of time now so I'm turning to crowd-sourcing via Jazzfanz. Here are the ones I have found so far; if you can add to the list, please copy and paste the whole list into your post and insert your player(s) chronologically. Feel free to add any interesting info I may have missed about other notable accomplishments.
Interestingly, some players I looked up who DIDN'T make the list were:
* Oscar Robertson, Cincinatti Royals - won ROY after averaging a crazy 30.5 ppg, 10.1 rpg, and 9.7 apg in 1960-1961, but team didn't make playoffs.
* Wes Unseld, Bullets - won both ROY and MVP in 1968-1969 (crazy!) but only finished 5th on his team in ppg
* Magic Johnson (team made playoffs, but third on team in ppg behind Kareem and Jamaal Wilkes; named all star game starter but didn't win ROY due to Bird)
* Hakeem Olajuwan (won ROY, Rockets made playoffs, but finished 2nd in ppg behind Ralph Sampson)
* Allen Iverson (won ROY, led team with 23.5 ppg, but 76ers didn't make playoffs)
* Shaq (led team in points with 23.4 ppg, won ROY, but Magic finished 41-41 and didn't make the playoffs)
* Tim Duncan (won ROY, team finished 56-26, but was second in ppg behind David Robinson)
* Damon Stoudamire (won ROY, led team in ppg, but Raptors didn't make playoffs)
* Blake Griffin (led team in ppg, won ROY, but Clippers didn't make playoffs)
* LeBron James (won ROY, led team in ppg, but Cavs didn't make playoffs)
---
The (probably incomplete) list:
1959-1960 - Wilt Chamberlain, Philadelphia Warriors - won both ROY and MVP (crazy!), averaged 37.6 ppg and 27 rpg (crazy!). Warriors finished 49-26.
1968-1969 - Elvin Hayes, Rockets - not only led team but also led entire league in scoring with 28.4 ppg, team finished only 37-45 but still made playoffs. Interestingly, didn't win ROY because of Wes Unseld, see above.
1969-1970 - Lew Alcindor (aka Kareem), Bucks - led team (and was second in the NBA) in scoring with 28.8 ppg. Bucks finished 56-26. Made all star game and won ROY.
1979-1980 - Larry Bird, Celtics - led team in points with 21.3 ppg; Celtics finished 61-21. Won ROY and made the all-star game.
1984-1985 - Michael Jordan, Bulls - led team in points with 28.2 ppg; Bulls finished only 38-44 but still made playoffs. Jordan won ROY, and also made all-NBA second team.
1989-1990 - David Robinson, Spurs - led team in points with 24.3 ppg; Spurs finished 56-26. Won ROY.