The Somerset man has paid the price for a series of below-par performances after being axed from England's one-day squad for the tour of New Zealand, having initially been included.
Despite being given ample opportunity to prove his worth, first as opener and then in the middle order, Kieswetter has yet to convince in either position. "Craig has had an extended opportunity in ODI and T20 cricket and while he has shown evidence of delivering performances on the international stage, we don't feel these have been consistent enough," said Miller.
He was low on confidence and runs in three ODIs against India, was stood down for the fourth at Mohali and is highly unlikely to play the dead rubber on Sunday in Dharamsala, where it is anticipated the game will go ahead despite worries of snow in the area.
The 25-year-old has not passed 50 in any of his last 12 ODI innings and Miller is now keen to give either Kieswetter's Somerset team-mate Jos Buttler or Yorkshire's Jonny Bairstow a chance to make their mark as England's wicketkeeper-batsman in the limited overs formats.
Miller added: "As we look towards the ICC Champions Trophy and ICC World Cup we will look to explore other options. It is always tough to leave someone out but we already have two wicketkeepers in the squad (Buttler and Bairstow), so Craig might not have played and could have been sitting about.
"The door is not closed to Craig, and he can fight his way back into contention for international selection through consistent high performances with Somerset."
England also added two players to the 50-over squad to face the Black Caps, with Joe Root and the uncapped James Harris joining the group. Chris Woakes was the only unexpected name in the 15-man Test side, with the Warwickshire all-rounder included in all three formats to replace Tim Bresnan, who is ruled out due to on-going elbow injury and is likely to be sidelined until the summer programme.
The uncapped Woakes is seen by England as the closest thing to a like-for-like replacement due to his batting abilities, as well as seam bowling. The 23-year-old has been in and out of England's one-day and Twenty20 sides, without managing to fully establish himself, but he may be given his chance in the three-match series.
Miller added: "We are always looking to widen the squad and he has shown us in the nets and in the odd game that he could be part of England's future."