The City boss rued his side's inability to defend crosses as the Sky Blues crashed out of the FA Cup at the Ricoh Arena...
Coventry City manager Tony Mowbray couldn't hide his disappointment as the Sky Blues were knocked out of the FA Cup by Northampton Town.
The Sky Blues fell behind early on as Nicky Adams' free-kick found it's way past the entire City defence to find the net before Jacob Murphy equalised.
Marc Richards headed home at the back post in the 17th minute and the Sky Blues couldn't break the Cobblers down, despite dominating the second-half.
The City boss said: "A really disappointing day. We're out of the FA Cup which is never a good thing and the performance wasn't good enough.
"We can't make excuses, we had a reasonably strong side out there today who should be winning these games.
"Ultimately, our inability to defend crosses has been our downfall. We should be defending each goal much better and the players know that.
"They didn't really cause any other problems other than putting the ball in our box. We dominated the possession in the second-half but we didn't have the magic at the end of it."
Mowbray confirmed the club are still looking for a replacement for the injured Reda Johnson and he hopes to get someone in before the Colchester game.
He added: "As we know, Reda Johnson is a huge miss for this football club and we're finding it pretty tough to find the right player to come in and replace him.
"We're looking everywhere and trying to find the right player to come in and help us defend those situations much better than we currently are.
"The search will continue next week and hopefully we'll have found the right player before the Colchester game."