Clarke, by all accounts, plans and runs training sessions. He develops sessions to work on systems and individuals, in accordance with the requests of the manager. So the manager wants us to practice defending set-pieces, or develop attacking set-pieces, or striking practice, or whatever, and Clarke organises these sessions and works with individuals within this. Thus, whether or not it was Kenny who came up with the 3-5-1-1, it would have been Clarke who prepared the team for fulfilling their roles within the system. Probably.