Ahem. I believe you are the one who has documented that our top 8 regulars this year are not only worse (except for Vazquez) than last year but somehow are all gravitating toward a mean OPS of about .750. Right now our top 8 in at bats and total bases are Betts, Bogaerts, Beni, Moreland, HanRam, Vazquez, Pedroia, and JBJ. Of those 8, the highest is .791 and the lowest is .722. That's a difference but not an overwhelming one.
Bogaerts OPS in April was .731, in May .949, June .763. On this team, not all that shabby for #3 hitter.
As for power, we have no power hitters this year. We are dead last in the AL in dingers and 28th in MLB. Ortiz was a power hitter, but nobody on this team is this year.
Given the distinct absence of power which no doubt has affected the run-producing middle of our batting order, my guess is that putting some speed in there wasn't all bad. More to the point, given all those guys gathered around that mean, I really don't care about those lineups.
Last year HanRam had a great year, now clearly because Ortiz was in the lineup, and drove in 111 runs. Good. Solid. But batting leadoff the entire season Betts drove in 113 and still scored the most runs, 122, on the team. Oh, and they scored 100 more runs than anyone else in the AL.