Yeah they did. Since Jase, Scott, and Holly were buddy buddy. (Mainly Jase and Holly) Diane was one of the people who devised the plan to eliminate her. (Drew was the HoH when Holly was evicted and since Drew was personally in Diane's pocket it kind of worked out against Holly)
I was surprised to see Holly as one of the ghosts though. I just wasn't expecting her. The others I was expecting, Josh, Bunky, Alison, and Eric most definitely.