LONDON - Former England batsman Kevin pietersen took to Twitter on Thursday to offer his services as a coach to British schools after expressing concern about falling participation levels. The England and Wales Cricket Board (ECB) published the results of its National Playing Survey Wednesday, which revealed a seven percent decrease in participation among children aged 14 and under. Meanwhile, total playing numbers fell from 908,000 to 844,000 compared to the previous season. "Any school cricket coaches or after school clubs doing winter training, tweet me and I'll pick a couple next week to join you...?"