While it's not unusual in the process of changing lines on the fly for a few players from different lines to be on the ice when a goal is scored, I couldn't recall an instance when teams were playing 5-on-5 in which all three forwards involved in a goal had each been playing on different lines during a game (Zajac third line center, Brad Malone fourth line center and Andrew Kozek first line wing).
When I asked Fighting Sioux coach Dave Hakstol how this happened, here's how he explained the situation:
When (Brett) Hextall came out of the box, he had an opportunity to join in the play, so he ended up staying out on the ice for about 30+ seconds, which made him unavailable for the next shift. With Rau up for CC, I wanted to get Duncan's line back on the ice. Malone was out in place of Hextall on the right wing. In the meantime, Duncan took a fairly short shift. Zajac's line was up next, so he took Duncan on the fly. After the partial change on the fly, instead of Kozek-Duncan-Malone, we had Kozek-Zajac-Malone. It made sense at the time, but I'm not sure if it does when I look at it in print!Hakstol emphasized that the key element in making this work was Malone's reliability in playing any position in any situation, a trust he has gained over the past couple of months.