Originally Posted by
gsteinb
I'd make the exact opposite argument
This.
Having a PM allows me to tailor my training to maximize my time. Given work and life demands, I know how many hours a day I can put in on the bike, and the PM lets me get the most out of those hours.
For example, Hunter Allen has been writing a lot lately about the idea of base riding in the fall and winter is a waste of time and effort by most amateur racers. His argument is that people with jobs and a life outside of cycling do not have enough hours in the week to truly spend enough time on the bike to build a base. Therefore, he has proposed doing a lot more sweet spot intervals to get a similar effect in a shorter time period.