There are more MLB hitters that start with the elbow up compared to down. Starting with the elbow up gives the hitter a "running start" into the swing. Starting with the elbow already down can lead to bat drag. This is the main reason coaches like to use that cue.
Some guys make it work with a "low elbow", like Jeff Kent and J.D. Drew.
Even if you see a hitter start with the elbow down, some will eventually get it up as part of their swing process.
There's a relationship here with the inverted W arm action you see in pitchers.
I hope Wright gets his elbow down before his shoulders start to rotate. :roll: