ST. PAUL, Minn. – A strike by campus managers at the seven MinnState university campuses, including Winona State, has been averted. Negotiators for MinnState and the union reached a tentative agreement after a marathon 15-hour session. The union had been prepared to srike next week just as fall classes were starting. Salaries were the main issue. The settlement terms were not announced. Acceptance was expected by the members of the Administrative and Service Faculty union,