No, I'm sure with cameras and all the technology out there these days, they could work it out. They use FIFA in some sort of capacity to track touches, passes etc. I'm sure it could be used for offsides, too.
Ref in the Swansea - Everton game missed a stone cold penalty when Alcaraz saves the ball with his hand.
Its time for them to add two extra officials next to the goals to monitor the penalty area. I think they do so in the Champions League which is working quite well IMO. Honestly, they should use the FIFA game technology to sort out offsides too.
Rather Moussa take the free kicks.
I know what to expect from the NBC halftime show. "What do Liverpool need to do to win this?" "What does Balotelli need to do bla bla"