If you have 30-60 minutes and want to read a very through statistical article about why having a defensive stopper at the rim is important (and how they plan on quantifying this in the future), this is the one-stop shop to do it.
I'm bringing this to the community's attention because I believe this is the reason Bismack Biyombo was selected. To anchor the paint and make it difficult to score around the hoop. His wingspan and natural proficiency at blocking shots at his very young age are already two pluses. His interior presence on defense has improved steadily since he's been in the league, and in a world obsessed with offense, it's my belief that Biyombo's growth as a shot-blocking menace will become a cornerstone for the Bobcats as they grow together.