Here's the thing... Rodman consciously decided not to be a scorer.
At the same time, he'd kept the game going when he got his offensive or defensive rebounds but wasn't a great passer, during those opportunities to be one. All and all, Rodman was a star because Phil Jackson didn't need more from a power forward, unlike back in Horace Grant's time when he needed more from both the 4 & the 5 spots, to keep the Bulls in the running.
If Rondo was a PF, instead of a guard, he'd be more like our Paul Silas, a tenacious rebounder, who made good passes, locked down other team's elite players (w/o Rodman tricks like wrestling w/ Karl Malone), and still managed 10-12 pts in 25-30 mins.