Alleyne worked previously with England’s T20I players in the Caribbean earlier this year, and is understood to have interviewed for the white-ball job that went to Mott.
Killeen is currently the assistant and lead bowling coach at Durham. He has also been involved with England’s white-ball players in the recent past, working with the ODI squad during the 2020 series against Ireland.
Alleyne will take charge of batting duties, while Killeen will look after the pace bowlers, joining a coaching team that includes Richard Dawson and Carl Hopkinson.
With World Cup Super League points at stake, England have named a strong squad for the three-match series, despite the absence of their multi-format players involved in the concurrent Test series against New Zealand. The party will depart on Tuesday, ahead of the first ODI at Amstelveen on Friday.