However, Rondo clearly has potential to be a much bigger scorer after the big 3 are gone. He showed glimpses of being able to carry a team in the 09 playoffs. His lack of a jumpshot isn't a huge issue, there are plenty of good scoring PGs in the league with bad jumpers.
Who is a good, efficient scoring PG with a bad jumper? Rondo is easily the worst shooting PG in basketball. Fortunately he also happens to be one of the best finishing at the rim.
As far as being a bigger scorer, yeah I think he can too because he's a shotmaker but can he be an efficient one? I don't think so unless he can shoot something like 52 percent or better from the field. Not being able to shoot threes or free throws makes it really hard for him to be an efficient scorer.
Rose, Westbrook, Evans (combo guard), Jennings, Parker, Wall, Stuckey (combo), and Harris. Those are all guys who live in the paint and scored 5-10+ more points last year than Rondo. Rondo might be more efficient than a couple of those guys, but he needs to maintain that efficiency after the big 3 leave and his attempts go up. Andre Miller is another guy that was a decent scorer for the 76ers.
Bottom line is you don't need a jump shot to become a good scorer in the NBA. Dwyane Wade, a former scoring champ, never took jump shots his first few years in the league. Rondo can, and most likely will, become a better scorer, and that should really be the next step that he takes. It's much more attainable for him than becoming a better shooter.