WEST LAFAYETTE, Ind. — In one corner was one of the top teams in the nation and the most dominant big man in college basketball. In the other corner was one of the Big Ten’s cellar-dwellers that was without its leading scorer and has lacked defensive might. The mismatch went about as one would expect. No. 2 Purdue hammered Michigan from start to finish and handed the Wolverines their most lopsided loss during coach Juwan Howard’s tenure in a 99-67 blowout at Mackey Arena. After a nightmarish first-half finish had Michigan facing a 24-point deficit, the uphill battle became insurmountable as Z…