I understand what you are saying and I think I understand the thought process. Sometimes we feel that we must be working toward some specific goal. But, it's not what I do personally and it's not an approach I would necessarily recommend. That's because there are too many variables that will determine your progress. Rather, my advice is to set goals in terms of measurable training statistics that should result in increases in power across the board. IOW, instead of setting goals based on the output of the process, set goals based on the inputs of the process. My view is that I will improve my power if and only if I get in quality minutes of L4-L6 intervals (AC's schema). L3 and below may improve my endurance but not my power. So, I set goals for a minimum number of minutes per week at L4-L6 combined. This doesn't mean merely a given number of minutes in that range. It means intervals of both the required duration and power for that level. So, the L4 minutes count only if they are done at durations of 10 minutes or greater, the L5 minutes count only if they are done at durations of 3 mins or greater, and so on. My personal goals are in the range of 3-5 hrs/wk, but that's based on my available training time. The beauty of this approach is that I have total control of achieving my goals. My hope and expectation is that the results will follow and thus far that has been true.