I don’t like outside analysts for the same reason as why you don’t like an outside analyst.
I do, however, like inside analysts. Those who go over things and help get things done. Although each minute decision is a gamble, a gambling man who knows his losing odds has a better chance of booking a win.
The sooner you start thinking from the inside, the sooner you can tie a purpose to your insights. The good-er the purpose, the deeper the thinking, and the better the analysis.