I don't think persistence pays off, persistence from one side and a crap ton of work from the other side CAN pay off. If we played with Cuco Martina for 3 years he wasn't going to magically get better.I agree, he has improved leaps and bounds since Carlo arrived. I always wondered why he was starting games when we had Silva & Koeman. I guess persistence pays off and he has made me eat my words. Absolute star.