PHILADELPHIA—Did you hear the one about Allen Iverson extolling the virtues of “practice” on a recent trip to SMU? Probably not. And we are unsure if Iverson actually did extol those virtues, although he was brought in to give a pep talk to the team. Why? Because Iverson and Larry Brown still have a bond, and the in-person tutorial was Brown’s idea. And the pep talk helped fuel the team’s rise to a 20-6 record. To fully comprehend the strength of the relationship between