I don't want to put words in someone else's mouth, but I think the sentiment from the author was:
He felt Michigan needed to recruit Detroit to be successful
He felt (still feels?) you can't succesfully recruit Detroit w/o skirting/playing in the deep grey areas of NCAA rules
Perhaps the sentiment was more of an indictment on the Detroit prep basketball power brokers than on Beilein as a coach?
And to be honest, UM's rise under Beilein has come by recruiting Indiana & Ohio over Detroit......so author may have been correct on Detroit recruiting but incorrect on UM's fortunes being tied Detroit recruits?