The top administrator in the Ames School District says a recurrent problem with the district's transportaton company has become intollerable. Superintendent Tim Taylor says since the school year started Durham bus company drivers have been late getting kids to school, late getting them home, or have missed some routes all together. He says the situation may mean it's time to bring transportation back under district control. Taylor says a change in state law allows the district to lease a fleet of busses, should it come to that. He says it would cost about $400,000 to lease the fleet, with the rest of the $2.4 million transportation budget spent on fuel and payroll. The district's contract with Durham ends this year.