The Vikings was seen on Saturday practising new offense system. Percy Harvin, a rookie WR signed by Vikings in the the first round of this year's draft, took part in the practice.
The new offense system is called Wildcat offense. It was used by the Dolphins last season and, as it was reported, is the reason for Dolphins' success last season. The Vikings seemed in the hope of improving the team by learning from the Dolphins Wildcat offense.