When the decision to move the New York Philharmonic’s home base back to Carnegie Hall after 40 years as the anchoring tenant at Lincoln Center was announced this past weekend, it came like a bolt out of the blue. There had been no substantial rumors of an impending deal, little to no speculation that the Phil might be pulling out of Avery Fisher Hall, and no public indication that Carnegie had much interest in reacquiring the orchestra as a tenant. In the rush to get a deal done, in fact, the Phil left some of its board members and supporters out of the process entirely. Lincoln Center officials, meanwhile, claim to have been broadsided by the deal, with no opportunity given for them to make a counteroffer.