With Crewe trailing in the second half, they were eventually brought on with five minutes left.
Dario told our friends at the official site, crewealex.net: "I slipped up with the substitutions. I should have brought Jonah on quicker than I did. He made a difference to us and Luke created a good opportunity by winning the free-kick.
"I left it late to bring on the two lads and that point has been made. It was a match of ifs and buts and maybes - but I felt we deserved a point on Saturday."
He explained that he felt Dean Ashton was the biggest threat we had so kept him on, despite the Alex number ten limping off with an ankle injury.
"I was reluctant to take Dean off because although he had gone over on his ankle, he is always the most likely to get us a goal. We created some decent chances and on another day we could have got something out of the game.
Now if he could explain why he took off Justin Cochrane I'd be able to sleep a little better tonight....