While I don't disagree with you, Rod is also a coach who changes his lines up A TON. The only set line he's really settled on lately had been Nino-Staal-Fast with Marty taking Nino's spot once Nino left. Every other line changes pretty damn consistently. So I'm not sure it really matters what opening night lineup is or what camp lineup is. It's all going to change.
Sure, Every coach changes lines up way more than fans want them to if things get stale. Certainly RBA will and I wasn't implying otherwise.
Thing is, we have a veteran team and there are some scenarios that will very likely play out to start the season and it's indicative in the initial training camp line-ups, barring a trade or injury.
Defense:
1) Slavin-Burns and Skjei-Pesce will very likely be together due to their history and success in the past.
2) That leaves Orlov and either TDA or Chatfield. IMO, TDA will get the nod as they want him on the PP.
Offense:
1) Aho will very likely be with Jarvis and 1 other "heavier" player. That means either Bunting or Svech.
2) Staal will be with at least 1 of Martinook or Fast, maybe both if Svech isn't ready opening night.
3) Svech-KK-Necas will likely be a line if Svech is healthy. If not, I would expect TT to be there.
4) The rest of the guys will be rotating on the 4th line.
Down the road that may change (ie..try a Svech-Aho-Necas line for instance), but given what we've seen in the past, I think it's just coach speak (or reporter speak) to say these lines don't mean much right now.