"Trout was hitting 1st a few years ago". Yeh, and now he isn't. Henderson was known much more his pwoess on the base paths than he was as a hitter. Ellsbury had that great year and hit leas off. Agreed. I don't agree that he SHOULD have been leading off. He was a long way from having the power numbers that Betts has, and will have when he has his best years.
There are exceptions going all the back, but that's what they are, exceptions. Does that make it Gospel? Can't the manager think of what might be best? Betts had been labeled for lead off back three years ago. Not many projected what he's turned out to be. Noi a big surprise considering he's, what, 5-9 and 175 lbs? But, he is what he is, and not what he was projected to be.