6. You do extra workouts.
There are rarely “extra credit workouts” in triathlon training. Your plan is (hopefully) based on smart periodization, peaking and recovering at the right time. By adding in bonus work, it shows that you’re not listening to your coach’s advice. To a more specific degree, you favor your favorite sport over your weaker one. “I coach a triathlete who is a 2:58 stand-alone marathon runner. She rarely does the bike work I want her to in favor of running, and she struggles on the bike. In her spring Ironman she asked me ‘why?’— I showed her the training log. You can’t run well off the bike if your legs are toast.”