I had the same concern when I started my second team, but I don't think it's really hurt the Whalers. I'm just focusing on training, making money, and building my arena. Since I'm not really trying to win with my second team, I'm not scouting opponents, thinking about lineups/tactics, or even looking at the TL very often, so the amount of time I spend on it is minimal, and I still get the fun of seeing my trainees improve each week, which is one of my favorite things about this game and something I miss with the Whalers. My plan is to start paying more attention to my second team and trying to win around the time that the Whalers go into rebuilding mode, so that I always have one team that I'm spending most of my time on and another in training/making money mode.