Tendulkar also suggested that the umpires in the middle be rotated in the same match, which would allow them time to rest, recharge and concentrate better. "I'm not particularly happy with the referrals because I'm not convinced of the angles (on television) ... I'm not convinced. I wasn't happy when we first went through it [on India's tour of Sri Lanka last year]." The referrals system was first tried out during India's Sri Lanka tour and the innovation has since been used only on a trial basis though it will be re-introduced on a permanent basis from this month. Full Article at Cricinfo.com