Inter are currently four points behind the top three in Serie A.
"Qualification is an uphill struggle and we will try, but there are huge regrets that we had to face Tottenham in their best period of form," Stramaccioni said.
"Inter are Inter and compete for every objective but from the first day we've known that the club's real target was to get back into the Champions League.
"We are building for the future here, both in the current side and in the transfer market. You can't put everything up for debate after the first defeat."
Inter face Bologna in their next game tomorrow night.