Republic of Ireland international Coleman will use the lingering pain of missing out on World Cup qualification to fuel a bid for a place at the Euro 2020 finals.
Coleman said: "Obviously, the disappointment has grown a little bit more again recently with all the excitement of the World Cup and we're disappointed not to be there.
"But since that night against Denmark, once we let that settle down, we needed to get prepared for the next campaign and that's what we're starting to do.
"But it's a good thing that we're disappointed not making these tournaments now. Especially under the manager, we have become very competitive.
"We had a great time at the Euros, we were unlucky not to qualify [for the World Cup] and to be disappointed shows that we want to be at these tournaments. That's the level we are at now: we will be disappointed unless we qualify."