Wicked and tame problems
http://www.drbrd.com/problems_and_solutions/three_types_of_problems.html
https://tamingwickedproblems.com/wicked-or-tame/
https://en.wikipedia.org/wiki/Wicked_problem
https://responsibility.com/wicked-and-tame-problems/
http://leadershipforchange.org.uk/wp-content/uploads/Keith-Grint-Wicked-Problems-handout.pdf
https://theteacherist.com/2019/12/03/change-leadership-critical/
https://www.leadershipcentre.org.uk/artofchangemaking/theory/critical-tame-and-wicked-problems/
Horst W. J. Rittel and Melvin M. Webber. Dilemmas in a General Theory of Planning. Policy Sciences, Vol. 4, No. 2 (Jun., 1973), pp. 155-169