I played around with the Baseball Musings Lineup Tool earlier today, just for funsies. The tool is not the end all be all by any means, but it does give us some insight into some of the things that we've been talking about with regards to line ups.
Here are some typical lineups that Cora uses, and the average # of runs scored per game that each theoretically produces:
Kike, Verdugo, JD, Bogaerts, Devers, Renfroe, Vaz, Marwin, Dalbec - 4.885 R/G
Kike, Verdugo, JD, Bogaerts, Devers, Renfroe, Vaz, Arroyo, Dalbec - 5.097 R/G (Replacing Marwin with Arroyo)
Arroyo, Verdugo, JD, Bogaerts, Devers, Renfroe, Vaz, Kike, Dalbec - 5.130 R/G (Arroyo in the leadoff instead of Kike)
*Point #1 - Who is in the line up is more important than who bats where.
*Point #2 - Switching the #1 and #8 hitters makes a difference of less than 5 runs a year, or 1/2 a game a year. It's not nothing, but it's also not as significant as most people think.
The optimal line up is Verdugo, Bogaerts, Hunter, JD, Devers, Arroyo, Dalbec, Vaz - 5.239 R/G
The 'optimal' line up is significantly better, a difference of about 23 runs, than what Cora has been throwing out there in an effort to keep his #2-5 intact.
Of the top 60 lineups that were produced, about 70% of them had Verdugo leading off. The other 30% had Bogaerts leading off.
*Point #3 - OBP is king and extremely critical for the leadoff hitter. Kike, Santana, and even Arroyo have no business leading off.
*Point #4 - Do not bat JD in the #3 spot. The #3 spot should probably be the weakest hitter out of the top 5 spots.