Marc Berman of the New York Post reports:

As Chris Mullin is enshrined into the Naismith Hall of Fame tomorrow in Springfield, Mass., for his spectacular career at Xaverian, St. John’s and the NBA, it is a Hall of Shame the pride of Flatbush is not going in while holding a Knicks’ front-office title.

According to a league source close to Donnie Walsh, his biggest regret as Knicks president was not being able to hire Mullin as the team general manager and then groom him as his successor. In fact, the source said if owner James Dolan had granted Walsh permission to hire Mullin last summer as GM, Walsh likely would still be the president — and not an Indiana-based club consultant.

Sources said Walsh backed out of a verbal agreement on a two-year extension due to contract language partly related to control in hiring his successor.