Roberto Mancini lamented Inter's sloppy defending at set-pieces and says his side threw away two points in Sunday's enthralling 3-3 draw at Verona.
Jeison Murillo headed Inter into an early lead in the Serie A contest at Stadio Marc'Antonio Bentegodi.
However, rock-bottom Verona threatened an upset as Filip Helander and Eros Pisano scored before half-time before Artur Ionita made it 3-1 after the break, with all three goals coming from Luca Marrone assists at set-plays.
Mauro Icardi and Ivan Perisic completed brilliant Inter counter-attacks to restore parity and earn a draw, but head coach Mancini was less than impressed by his side's defending.
"We threw two points away and it could've ultimately been worse, because we risked conceding a fourth on the counter at the end," Mancini told Sky Sport Italia.
"Unfortunately we conceded three goals from set-pieces. We conceded a similar goal against AC Milan, so we have to improve these things that we had been doing well.
"It's not that we played without determination. We conceded on three dead-ball situations and have to be more careful, but we were determined until the final whistle.
"We will fight all the way and hopefully will be able to put together a run of victories.
"We threw away two points considering how the game started and the opportunities we had at 3-3."