3rd base coach positioning

[rpumpire]

I don't believe this is contrary to the rules, but I have never seen it before.  On this play, the Red Sox third base coach is actually in fair territory to wave the runner around.  As far as I can tell, as long as he doesn't interfere with the play, it's legal.

http://m.mlb.com/video/v503213183/balbos-rutledge-opens-scoring-with-an-rbi-double/?game_pk=415957

 

[pnewton]

He does this regularly, with any ball hit down into the left field corner at Fenway as it's not really possible to see the ball down there from any real distance into foul territory.  If he isn't in the way of the play there is nothing to call. 

[maineump]

He is also half way between his box and home plate before the pitch.

As above, if no interference, then no call - if the other team complains, then all base coaches are kept in the boxes - hence, no one complains.

[stkjock]

Interesting position of the PU as well.  I wonder if for the same reasoning.