Agreed. Loads of players are only moderately talented but contribute immensely. Tim Cahill was the most average player I have ever seen in my life but the way he found space and got away from his marker to score goals at corners for Millwall, Everton, Australia and that US side he played for...
Apart from Lewis Dunk. Gross has been the most influential Brighton player since they reached the PL . They would never have survived the First season in the PL without him.
On top of that. He still has a lot to offer so I think he will get offered a new contract before the summer