|NFL Scout Mel Kiper, Junior|
In short, Mr. Kiper deals with evaluating prospects. He cares about the past and present: how good is the player based on his performance so far?
Bill Walsh (1931-2007) was a Hall of Fame NFL coach. As such, he had an entirely different skill set and mission. Unlike a scout, his job was not to recognize talent as much as it was to develop it, along with a game plan. He was a master of tactics/techniques and strategy. He was amazingly creative; his "West Coast Offence" remains the most popular and successful approach in the game. To inspire his troops he needed strong verbal, not writing, abilities.
In short, Mr. Walsh dealt with improving prospects. He was focused on the future. As they say: "You're only as good as your next game."
In every respect¹, a literary critic such as Marjorie Perloff is like Mel Kiper, the scout. A great critiquer such as Margaret A. Griffiths is like Bill Walsh, the coach.
It is the difference between a judge and a midwife.
It is the difference between prose and poetry.
¹ - Both critic and critiquer use text as a medium but the latter is far more likely to engage in a detailed conversation about sonics while the former may, at most, pay lip service to "musicality". The critiquer is helping someone write poetry worth reciting aloud; the critic is writing prose. It should surprise no one to learn that, in general, critiquers tend to be far better poets than critics are.