Coventry manager Frank Lampard told BBC Radio CWR:
"We gifted them their goals. If you do that in the Championship you lose games. If you defend sloppily and make mistakes, teams score against you.
"We created enough chances to score more goals but didn't. Defensive errors are a problem, something we've been good at this season.
"It was a great finish, good goal, and we went in at half time 1-0, so that's positive, but we came out [in the second half] and gave them some momentum.
"Some games aren't easy to control in the Championship. We had more possession than them, and created enough chances, but games are always won in both boxes.
"It's not easy to come here on a Monday night against a team in good form and try to control every aspect of the game."