Race Radio said:They did not know of the EPO positive as it was only (re) tested recently. They did know about his unusual values.
Team director Harold Knebel told the Dutch television broadcaster NOS that doping had played no role in the team's decision to terminate his contract. “The reason is that we both lost confidence in each other.” The team became aware of his doping only after the news was announced this summer, he said.
Dekker vows to return after suspension - cyclingnews.com
Just going off what I read.