What his average would have been in the future after X many Tests is also not the point.The point is that in the Test matches that he played, he could have had a higher average (somewhere around 40) had he chosen to apply himself for the team and not play for his image and reputation.If you can average 36 @86 without applying yourself, you can definitely average 40 with better application but with a slightly lower SR which would still be very high for the format.Botham played his home Tests in the UK.