Team A's putts are both away against Team B on a par 5 and are both putting for birdie.
Team A player 1 putts and leaves it 5 ft short. (Dang!)
Team A player 2 would like Team A player 1 to putt out to see if he can sink the par putt.
Here is the problem: for Team A player 1 to take his stance he would be stepping on the line of a Team B player.
Can Team A player 1 putt out?
Or, have Team B player putt first?
Or can the Team B player refuse?

Seems unfair that Team B should be put at a disadvantage but Team A player 2 could make a more aggressive birdie putt roll if he knew his partner was in for par.
Thanks
Hope my explanation makes sense.