The Dallas Cowboys absolutely need to re-sign free agent receiver Laurent Robinson this off-season. That’s a fact, plain and simple. He was the team’s most reliable receiver in 2011 and the top red zone target for Cowboys quarterback Tony Romo. However, there’s not a good vibe around Valley Ranch regarding Robinson’s status in Dallas. If he walks, the Cowboys should target New York Giants receiver Mario Manningham as the new No. 3 option in Dallas.