Kookaburra sponsorship, well, isn't sponsorship. Its a fairly large discount. A guy who once played for Cambs and now sits on the verges of our first team, playing probably 10 second team games a season gets a discount from koos still, 4 years after his cambs appearance.
At least that was the situation until a few weeks ago when they changed their sponsorship system, the guy at my club no longer has his discount and plenty of others have seen their deals cancelled, and new applications are being turned away every day.
I suspect hes hunting round for new gear because kooks have cancelled his deal. Decent enough stats in a fairly good league (i've played against Bourne in his league in our local T20 comp, without their overseas pro we probably would have won. He took 80 odd wickets in the lincs prem and scored about 500 runs last year and Bourne still didnt win the league!) but i'm certain the criteria is CURRENT minor counties regular now kooks have changed their requirements.
Just my educated guess from putting the puzzle pieces together.