Kim Hellberg remained defiant after his Middlesbrough side again dropped points against a team battling relegation.
Boro have played out two draws since Coventry regained top spot in the Championship by beating them.
Having played out a goalless draw with Oxford United at the weekend, they drew 1-1 with Leicester at the Riverside Stadium.
A win would have taken them level on points with Coventry, but they are six clear of third-placed Ipswich and Hull in fourth, so remain very much on course for promotion.
Head coach Hellberg told BBC Radio Tees: "It makes it one loss in the last nine, but of course you want to win games. We weren't good enough to win today.
"From the last two games we created a lot of opportunities but for us now the ball is not going into the net to win it.
"But in those games we have two more points to our tally. We wanted more but that's done, so we have to work from it and keep improving.
"You take points you get at this stage of the season and keep working. We're in an unbelievable position and we will keep working hard to keep it.
"It was two good teams going at each other. They have a lot of quality and we have the same.