Preventative officiating, or not?

[Andy]

HS State tournament game this last Saturday, loser goes home. I am PU

Two evenly matched teams, close ball game throughout.

Home team DP (#10) comes to bat and get a base hit. Coach substitutes a faster runner (#5) for the DP. The half inning ends a couple of batters later with no runners scoring. Coach says nothing to me about re-entering #10.

Two innings later, the home team DP spot is due up and #10 steps into the box. Still nothing has been said about re-entering #10. R1 is on first, #10 gets a single that advances R1 to third. Game is tied at this point and the home team coach approaches me and asks if he has used his offensive conference in the inning, I tell him that he has not. He wants time to talk to his batter and runners - I grant time.

After speaking to his players, he approaches me with his line up in hand, so I pull mine lineup holder out anticipating a lineup change. When he gets to me, he is looking at his lineup with a confused look on his face, I ask him if he wants to make a change, no answer. I then ask him if wants to re-enter #10, he says - Yes, that's what I want to do! I announce the re-entry.

My question - should I have mentioned that to him at all or just left it alone until the visitors said something?