New Zealand v England: Ashley Giles pleads with Somerset to play Jos Buttler ahead of Craig Kieswetter The dropping of Kieswetter, who was removed not only from keeping for England but also from the one-day squad to New Zealand, an unprecedented move given his original selection, proves that Giles is prepared to make tough decisions in his new job. "I have to be more ruthless as a coach - you are not being nasty, but you've got to make strong decisions," he said. Craig wasn't left out of the squad, it was by mutual consent really. The opportunity had gone for him. With Jos taking the gloves and Jonny Bairstow being next in line it made sense on both sides for Craig to go home and get his game in order. If you don't step in, and everyone else can see you should be doing it, you lose respect quite quickly. When you drop someone, you always look them in the eye - sometimes it will fall to the captain, sometimes I might do it - but all you can do is to be honest. If your performance isn't good enough, I'm going to tell you. I don't expect you to like it, but it doesn't change the conviction behind the decision. Giles was also the driving force behind Joe Root's recent impact after he replaced Samit Patel, judgments calls which he says are based primarily on personal results. As a selector you see certain things but you don't see the detail, which I do now I'm coach. Players are selected to perform and ultimately we have to pick the side that we think will win games. The emergence of Root as a player mature beyond his years is testament to both him, for pushing him at the right time, and Graham Thorpe, who helped develop him as part of the England Performance Programme. Thorpe was cagey when asked if he would like his role as batting coach with the one-day side to be made more permanent, but Giles, who played with Thorpe in the years before England's famous Ashes win in 2005, is in no doubt over his value. "I've been really impressed with the way he's done things and I think he's really enjoyed it," said Giles. Graham Gooch wants to take a step back to go around the country and work more closely with the Test players so it makes sense for Thorpey to do the same with the one-day guys. There are no issues, no hidden agendas - it's just one of those things you need to talk through. When Giles does get home, he will have a short break before plotting England's way to winning the Champions Trophy, which will be held at home in June. A new ball at either end, fielding restrictions that allow only four fielders allowed outside the circle instead of five during the non-Powerplay overs, and English pitches in June, all need to be digested by him, Alastair Cook, Andy Flower and the team's analyst, before a plan of action is settled upon. "With the tournament being in English conditions we have the opportunity to do really well," said Giles. I'll go away and look very closely at Australia, New Zealand and Sri Lanka, the other teams in our group. But we don't want to get too cute with the game. The formula with which we play is pretty simple but homework on the opposition, like bowling very straight to Ross Taylor, is important.