Is Agility a Zero Sum Game?

I am a feeling disappointed from the weekend. Wyatt and I seem to be having contact issues again. Specifically, we had a lot of trouble with the dogwalk on Sunday. He did seem nervous at this indoor site and I think my handling of the dogwalk was off. What was not working was me lagging way behind him. I think in this case, he sees or hears something behind him and interprets it as a signal to release. I did notice that he did better yesterday on our last run when I send him to a tunnel, had him catch up with me, and then release him when we were more together. He released prematurely but did make the contact. I SHOULD be happy about a weekend with perfect weaves and fewer problems with off courses. (Still needs work.) We did get one standard Q so we need 6 more for our championship. The 3 Q's we did get were all first places. Sometimes it seems like a zero sum game, you get better in more area and something else seems to fall apart. Perhaps that is my inexperience in keeping everything "in mind" at once. I have a NADAC trial in August where we can train in the ring for contacts and I may try and get to some different classes at different sites to practice.