yes, rondo should go to the basket more, and he should get more fouls called by the refs.
but....
for me the biggest problem is the reappearance of his terrible shooting. last year he was embarrassingly bad at fg shooting. a number of posters here pointed out (and I agree) that probably his biggest problem was he was always out of control or off balance when he shot. even his layups were ugly to watch. he did not seem to have a consistent move to the basket and basically resorted to chucking the ball up, hoping for good luck.
during the season this year, i was very pleased too see him prepare for his jump shot better. no more out of control or inconsistent leaning, jumping sideways, free-form chucking. he got set, squared his shoulders, focused, and shoot the ball. methodical, a bit slow maybe, but it worked for him. his shooting was much improved.
his layups improved as well this season. he was using a more consistent shooting form, getting better balance. and he developed an effective, if odd looking, little spin-and-shoot move for under the basket.
all of this was great! now all this is gone.
now, i watch him run at the basket and flip the ball up from his side, his front, above his head, from his hip, leaning, lunging, etc. he lugs up these high rainbow shots that have no real accuracy and no real hope of going in because his shooting form is off..once more.
thus far in the playoffs, i dont see the improvements he made during the season very often. as was the case last year, he is flinging the ball up without good form, and his percentage is dropping and the team is suffering.
i like rondo, but the playoff pressure seems to have gotten to him so far.