ANN ARBOR, Mich. — University of Michigan officials late Tuesday placed co-offensive coordinator Matt Weiss on paid leave while university police investigators probe alleged computer crimes at Schembechler Hall, the nerve center of the football team that includes the offices of coach Jim Harbaugh and staff. The exact focus of the investigation was unclear late Tuesday, but it’s the latest legal inquiry to emerge during an offseason clouded by the threat of recruiting violations. The change in Weiss’ employment status came less than two hours after UM Deputy Police Chief Crystal James issued a …