There are about 50 people gunning for 1 manager opening and many people have been at company a long time. I would say maybe 1% of reps actually move into management.
Randomness in regards to who does good. The sales results is not a true result of who are the most talented sales reps as it comes with tons of luck for how your book of business performs.
Things to note - Can you make 100k - Yes!
Know you will be calling the same people over and over who don't
really need your help most of the time
Overall I think its a great first company out of school and was very helpful to have a recognizable name on the resume.
Tons of admin work to be done for a sales position