Two umpire mechanics

[mo99]

I have a comment and a question on coverage in a two umpire worked fastpitch game.R1 was on first base with no outs.I was in the B position as R1 was stealing on the pitch.The batter laid down a bunt,in which my number one priority was the whacker at first base.Immediately after making my call at first base,I pivoted toward second base anticipating F4's throw back into second base.I pumped out R1 as she was headed back into second base after making the turn.The offensive coach called time and approached me to question my call at second.I told him she was tug out far prior to reaching the base.He wanted obstruction on F6 as she collided with R1 as I was making my call at first base.I consulted my plate umpire and he alertly saw the obstruction on R1,in which I disqualified my out call and put R1 back on second base.My question is on the coverage of this play.Fortunately my partner hustled and saw that play.As a base umpire,is there something I could have done to better see that play even though my priority is the first call at first base?
Jeff