D'Antonio is not a good example of someone needing 4 years, because he came in and immediately improved Michigan State. Sparty went 5-7, 5-6, and 4-8 the final 3 years under John L. Smith. D'Antonio went 7-6 and 9-4 his first 2 seasons. That's showing immediate improvement. Yes, he went 6-7 in his 3rd year, so that was a step back, but he then followed with 2 straight 11 win seasons. D'Antonio showed he was a good coach in his first 2 seasons by improving Sparty, so they were willing to give him a 4th year because his 3rd year was an outlier.