On his journey around the wilds of strategic management in Strategy Safari (co-authored with Joseph Lampel), Henry Mintzberg identifies ten different schools of strategy formation.

The first five are:  design -- fitting internal situation of the organization with the external environment; planning – formal planning from analysis of situation to strategy execution; positioning – influenced by the ideas of Michael Porter - strategy depends on the positioning of the firm in the market and within its industry; entrepreneurial – strategy driven by the leader; and cognitive – delving inwards into the minds of strategists.

The second five are: learning - strategy as an . . .