Deletion of Bowman's Strategy Clock

Comment: Seems to be a valid theory in economics. I get the vibe that its taught in college economics courses, based on http://studylecturenotes.com/bowmans-strategy-clock-model-its-eight-competitive-directions-for-edge/, https://www.marketingteacher.com/bowmans-strategy-clock/, and https://www.marketing91.com/what-is-bowmans-strategy-clock/. I'm not an economist, but I'd wager that this is covered in an economics/marketing textbook somewhere. Of course, we're unlikely to just find it by searching google, since textbooks are not cheap nor accessible (). But given that I could find a bunch of quick google sources, the images results are just chock full of visualizations of the "clock", and that Bowman's original paper is well cited, I think this is worthy of a keep
Stance: keep
Cited policy: Wikipedia:Notability (WP:NEXIST)