The visitors, who had refused to pay any agents, looked to be on the way to a big total but some excellent bowling from Chris Martin who took five wickets on his Warwickshire County Championship debut and two wickets apiece for Chris Woakes and Neil Carter left Glouceter all out for 336 with Marshall making 121.
Warwicks reply was swift. Although they lost Michael Powell with the score on thirteen. Coventrian Ian Bell, who hit fourteen fours in a blistering innings and Poonia added a hundred before the latter was given lbw off the bowling of North.
Bell went to make 95 not out with Jon Trott on 9, Warwicks closed on 143-2