PSU's top recruit, a 4 star DE flipped to Florida. Florida has flipped a 5 star DB (from Arizona)and 4 star RB (from Miami) as well in the past couple weeks.
What, you think that if you hire a coach the recruits will flip instantly? This will impact the 2015 and future recruiting classes not the current class. Those are all pretty much in the bag.
Obviously, it's only impactful if the Big 10 as a whole continues to spend whatever it takes to get the best coaches.