Ireland, who performed conspicuously better than England in Australia and New Zealand, may infer more second-class treatment at the selection of such an experimental side but, after the grim showing in 50-over cricket over the winter, England's fans should find plenty to be enthusiastic about among the group.
Ansari, who opens the batting for Surrey in Championship cricket, bowls slow left-arm and could fulfil the spinner's role - although it is understood England plan to play Rashid. Billings, who scored 458 runs at an average of more than 100 and a strike rate of 154.20, will compete with Bairstow for the gloves, but either could still play as a specialist batsman.
Left-arm seamer Willey has been tipped for an England call-up since starring on T20 Finals Day in 2013, when he scored 60 from 27 balls and then took a hat-trick to help Northamptonshire to an unexpected triumph.
Finn and Bresnan - who has begun the season in good form for Yorkshire after making a change to his action - will lead an otherwise inexperienced attack. Boyd Rankin's good form for Warwickshire has been offset by the need for an injection on a back injury, while Nottinghamshire left-armer Harry Gurney is also injured.