Well, Master Dn. That would depend on the rules of said game. Are we defining airport success as increased passenger throughput alone, or does sustainable long-term financial viability merit consideration? Because on Ryanair's terms an airport may quickly find it cannot enjoy both. Amateurs usually favour the former, but aviation business professionals are required to be mindful of the bigger picture. "Winning the game" from MAN's perspective means not alienating the goodwill of the many other carriers operating from the airport. "Winning the game" means prioritizing profitability and protecting revenue streams. "Winning the game" means not undermining your loyal long-term business partners by awarding a sweetheart deal to a single ruthless predatory interloper.
Forget the game. Consider the game, set and match.
Good Luck. SHED.