I found this little tidbit to be pretty interesting in an ESPN article about recruiting:
Quarterback Zach Kline of Danville, Calif., long pledged to Cal, continued to hear from other schools for months after making his commitment.
The most persistent suitor? Michigan. Kline said he liked all the Michigan coaches but finally told them to stop wasting their time.
"It gets annoying," Kline said. "But you find out it's a business, and these players generate a whole lot of money. You've got to look at it and remember each of these players is extremely valuable. We're all pieces in a big puzzle for them."