Yeah, but u take 1 scenario......which is quite possible MORE OFTEN THAN NOT in KO games -We are chasing 350 odd score against an Aus/NZ/SL......Sachin & Sehwag give a partly good start - say about 40 odd in 5 overs.At that time, dont u think any captain would say "Well, let me send in a power hitter to keep momentum going in Powerplay, & reduce the asking rate to some acceptable level."At this stage, if Yusi makes a quickfire 40 odd in some 20 balls, his job is done.....may be we can even expect more mature innings & he scores 60-70 in 40 something balls - u r very much into the chase then!!