While it may be nice to start scoring at 3.5 runs an over, the scoring rate isn't our problem. In fact, throughout this series New Zealand has comfortably outpaced England in terms of batting. But when was the last time our top order had any solidity? Back when Mark Richardson, perhaps our slowest, grittiest batsman since John Wright retired, was at the top. That's what New Zealand really needs. Because while every once in a while, Taylor might succeed in the number 3 position and blast a hundred in the first session, in the majority of cases he'll get out before he's out of double figures due to the extra swing and his own seeming inability to reign himself in. And personally, I'd rather take 60/1 off 30 overs, than 100/5 any day.
In either case, this shouldn't be in issue. McCullum has shown, both today and in the past (think back to 2004), an ability to succeed at the top of the order, and (when the occasion is right) score fast. It's a position he's used to (he bats at number 3 in first class cricket), that he enjoys. He's also had plenty more time to work on his game at the international level, and has a better idea of his strengths and weaknesses. While its hardly ideal, if you want a dashing number 3 manufactured out of one of our middle order batsmen, McCullum is the man you should be going to, not Taylor. There may come a time when Taylor's matured enough to give batting higher up a shot. But he shouldn't be shoehorned into the role before he's ready, and he is clearly not ready. He certainly shouldn't be asked to mature in a position in which he is uncomfortable. There's too much danger of ruining one of the brightest batting talents we have.