Who been watching the NBA finals? The Refs call every single foul on ever single little contact. Now why can't Refs call many penalties of offensive guys? Like I wanna see more illegal contact fouls on offensive recivers. Nor Defensive guys can't touch a receiver before ball is in the air. If an receiver bumps into defender while ball is in the air. THATS A PENALTY. Or an receiver runs into a defender on a pattern THATS A PENALTY. It goes on defense guys too. If they touch by putting an hand on the receiver while running a pattern Thats a penalty and automatic first down. Thats the Rules I wanna see in the NFL.Confusing like the NBA is.

why dont they just play tag?

Because the refs were beting on the game.. they dont do that in football.