Since we strive for fluid playing and fluid changes between chords, finger position is important. A good rule is, to always have one free finger between two occupied ones (using finger 1+3 to play a 2-finger chord for example). Sometimes it is not possible to change to the next chords with our free fingers. In that case we use the crawling-technique: While always playing at least one note, we change the other fingers to the next chords.