Carlos Carvalhal said his players’ response immediately after half time sealed victory at Rotherham on Friday night.
Quickfire goals from Lucas Joao and Fernando Forestieri put the Owls in the ascendancy and although Tom Thorpe pulled one back at the last, it was too little too late for the Millers.
Carvalhal said: “I was not too pleased with the first half performance, we could have done better and we talked about that in the break.
“We changed the way we play slightly and it made the difference. The players’ attitude was absolutely fantastic and that got us the win.
“We could have won the game 3-0 with the chances we had after that but that would have been hard on Rotherham.
“I wanted a clean sheet but I think 2-1 was probably a fair result.”
Wednesday now begin preparations for Tuesday night’s Capital One Cup fourth round tie against Arsenal and Carlos emphasised that only now will the players look to the Gunners clash.
He added: “None of the players have been talking about Arsenal, I swear to you.
“All week we talk about Rotherham, we focus on this game only.
“Now we can talk about Arsenal and focus on Arsenal.
“I will travel to London to watch the game against Everton and then come back and continue preparing and analysing for this game.”