90% of scouting is about how hard you work and how well you use your time. Figuring out who the most talented players are is perhaps the easiest part. The hard part is finding them and seeing them. Though finding them and even seeing them has become much easier than it once was.
Outside of pregnancy and possibly experience there is no reason a female can't be a great scout.
Before anyone goes crazy about the pregnancy comment consider this... Your area scout goes on maternity leave during the spring. This simply can't happen for 3 months before the draft. Guess good planning would solve that issue.
Anyway, I think it is a good thing getting females involved in the game.