Wellington: New Zealand Cricket boss David White has admitted that there is "positive tension" between national coach John Wright and director of cricket John Buchanan, but does not believe that it will affect Wright's contract. Following New Zealand's 0-1 defeat to South Africa in the recent Test series there is plenty of speculation over the future of Wright, whose contract as head coach expires in August after New Zealand return from a series in the West Indies. White admitted that there are issues between the two and preferred to call it positive tension. "In any professional sporting organisation you have strong people and sometimes you have positive tension. Sometimes that's a good thing because you get outcomes," White was quoted as saying by Fairfax. "They're strong personalities. I've got no issue with the structure and they're the reporting lines. It works pretty well but at times there is robust debate. Buchanan is Wright's superior in the pecking order.âAsked if Wright was prepared to walk away from the job because of issues with Buchanan, White said: "I certainly don't think that's the case." He also said that the coaching role should be confirmed by the end of April. "Obviously it's a priority for New Zealand Cricket. We'll give John some space, it's been a long period of cricket, and then we'll sit down and discuss the future," he said.Buchanan, the former Australia coach, had disbanded the previous selection panel and roped in Australian Kim Littlejohn as national selection manager. Buchanan also gave Wright the veto power in selection table, but the Australian also takes keen interest in selection meetings.