I don't see my line combos being that far off.
Boucher is probably hoping that Mac can get Ryan going, and can see the two of them playing with Turris since Hoffman and Pageau have been paired together for quite some time. Ottawa's best line last year down the stretch was Smith-Pageau-Stone, so add in Hoffman and take out Smith and we should see a lot of offensive production out of that line.
Honestly, Ottawa can roll 3 shutdown lines with Burrows, Smith, and Pageau spread across different lines. Ottawa definitely has the advantage in this series because of their depth