The Washington Redskins will arrive on Saturday in Gainesville for an extended visit with University of Florida quarterback Tim Tebow. A three-man evaluation team of coach Mike Shanahan, general manager Bruce Allen and director of player personnel Scott Campbell are scheduled to put the Heisman Trophy winner and two-time national champion through a private workout on the UF campus. Tebow is rated as second- or third-round quarterback choice by most analysts, but helped his stock Wednesday when he unveiled a new (and improved) throwing motion at Florida's pro day and a Redskins' regional scout was among the session attended by close to 100 NFL coaches, executives and personnel types.