In an all-encompassing mailbag, Dave D'Alessandro addresses questions about the three young bigs the Nets had last season, and who may be staying or going, depending on how things play out this summer. How long will it take for Sean Williams to get his act together? Will Nenad Krstic fully recover from his knee injury? Can Josh Boone develop some variety to his game? Those are questions we'd love answered. Meanwhile, Francisco Elson's agent says the Nets have contacted him, too.