"I think they overachieved last year as far as record and how they got to the spots they got to in the playoffs," Jackson said Thursday on "The Waddle & Silvy Show" on ESPN 1000. "They still have to have some steady shooters from the outside to complement the penetration they have, and then (Carlos Boozer) has to have that post-up game that he was brought there to give them.
"They just can't be one-dimensional in that regard. They have to have those complementary pieces to assist Rose in his game."
The Bulls finished 62-20 to secure the No. 1 seed in the NBA. They advanced to the Eastern Conference finals before losing to the Miami Heat in five games.
Rose became the Bulls' first MVP since Michael Jordan played for Jackson's six championship teams in Chicago in the 1990s.
"He shows himself to be unstoppable, and that's a real tremendous year he had last year," said Jackson, who retired this year after winning five titles with the Los Angeles Lakers. "And the way [coach Tom Thibodeau] used him magnified that and made him such a difficult player to contest and contend with.
"But they still have to have some pieces around them."