From the moment he was introduced as the Rangers' manager, Jeff Banister seemed like an anomaly. Underneath that commanding presence lurked a bookish intellect, a nerdy physics teacher inside a big, bad high school football coach. The effect was compelling, as were the initial results.Banister was so impressive, in fact, that I asked Jon Daniels later in a casual conversation why someone else hadn't hired him first."During the interview," Daniels said, nodding, "I was thinking, 'What the [expletive] am I missing?' "What Daniels missed was that managers are less potentates these days than camp counselors.