Probably difficult for them to commit to play a game on Thursday with only one day notice. They could just tell both teams on Sunday night 'hey if Tampa wins on Tuesday you guys are playing Thursday' I wish they scheduled like the NBA, where sometimes the last Game 7 of a previous round and the first game 1 of the next round are played on the same day. One game is on the east coast and another west coast so you could easily have Tampa-Montreal start at 6 CT and Hawks-Ducks at 8:30 or 9. they could do that, but things like travel/hotels/venue booking etc requires some firm commitments. I think they would really need to just tell them Thursday regardless of other games.