Daniel Ballard said the mood in the Northern Ireland camp was "fairly positive"despite slipping to defeat at home to Finland in the Euro 2024 qualifiers.
Benjamin Kallman's 28th minute goal was the difference between the sides on the night as Michael O'Neill's men suffered their first loss of the campaign.
They pushed hard for a leveller on the night but a mixture of poor finishing and a lack of composure in the final third left the hosts frustrated at the National Stadium.