Michigan State needed more than a month to look like the team respected enough to be ranked No. 4 in the preseason AP Top 25. Tyson Walker scored 18 of his 25 points in the first half to help build a huge lead and the struggling Spartans went on to stun previously unbeaten and sixth-ranked Baylor 88-64 Saturday. “It was a step in the right direction," coach Tom Izzo said.