Sure, it'll be a rough patch in 2010. And if Justice and JdJO want to propose a way to spend $40MM more on payroll next year and thereby beat the Cubs and Cards, rock right the fuck on. But if the team did do just that, you'd still end up in three years where they are right now: huge, untradeable veteran contracts and a logjam preventing prospects from getting MLB experience.
Let the kids play. It won't be pretty, but if Castro, Manzella, or Johnson provides half the entertainment value that Bourn did last year, it won't be a completely depressing season.