Hull City boss Marco Silva felt that confidence played an integral role in his side's 2-1 victory over West Ham at the KCOM.
The Tigers were a goal down at half-time after Andy Carroll's opener but Silva replaced Curtis Davies for Kamil Grosicki, who would go on to lay on assists for both Andy Robertson and Andrea Ranocchia as the home side earned all three points in east Yorkshire.
Though the Portuguese admitted his side were not at their best for much of the first half, he told Sky Sports that the first 25 minutes in the second half were 'great'.
"We changed some things [at half-time]. First of all we changed the system but I think we changed our confidence as well because in the first half, I felt our team was too slow with the ball.
"Of course, it was a very balanced game in the first half and no team controlled it. Okay, from one cross they scored so in the second half we changed. The first 25 minutes in the second half were great - we scored one goal and had two or three more chances to change the score. After West Ham reacted, we brought on Marcos [Henriksen] and [Shaun] Maloney, and we started to control the game again and scored from a set piece - I think we really deserve this victory."
The victory preserved Silva's unbeaten home record since taking over at the KCOM in early January and saw his side draw level on points with 17th-placed Swansea ahead of Wednesday's six-point crunch clash with fellow strugglers, Middlesbrough.
And although Silva admits that will be another hard ask, he says it is key to rest ahead of such an "important" tie.
"The Middlesbrough game is important as one team will go out of the relegation zone. Now it's important to rest, prepare well because it will be a hard game again.
"It's our goal [to escape relegation] and since I came we've said that. It's really, really difficult and many people don't believe [we can do it]. It's important we have another good performance like this afternoon, we took another important three points but we don't win anything for that, we need to fight until the end of the season."
"All the games now are massive. When you play at home you are stronger and we showed that again this afternoon, how strong we are."