I also think it is unacceptable. And I wouldn't care or consider for even 2 seconds that Rondo just signed a $55 Mil contract,if I were coaching him, I would yank him on the very first time he played it lazy and let his guy get by him.
I would put in Lester Hudson and tell Rondo his minutes are Lester's until he
(Rondo) decides he's interested in playing defensive basketball.
You know why? Lester would try to stay in front of his man "like his life depended on it". It's a matter of will, it's a matter of effort.
I understnad what you're sayign about Rondo being light, slight of frame. But in my experience unless a guy has 50-70+ lbs on you, you can genrally hold him at bay. Very few points have 40+ lbs on Rondo, maybe 10-20 pounds...
And there is a difference between staying in front of your man and letting him drive by you. Even if a point can back you down from the top of the key there is only so far he can go before he runs into the trees clogging up the middle. Rondo just needs to stay between his man and the basket a smuch as is humanly possible, given the picks,e tc., one of those old fundamental statments.
In fact, him being slight of frame should actually help him stay in front of his guy because he should be able to slip the picks ( over or under) much more easily than bigger points.
What bugs the most is that with his gifts, he should be at the top of the league in this skill, which would make our defense killer. Conversely, he's at the bottom of the league.
And aagain, given his physical gifts, it is comletely unacceptable.