Ottawa's claim to fame coming into this series was that they were pesky. So are mosquitoes. The only difference between the two is one was willing to get blood. All series, the Sens just didn't seem like a team willing to sacrifice to get anything. Their downfall was how badly outmatched they were against the Penguins.
A team will usually heap praise on their opponent during a series to play head games. Here's a couple quotes from the Sens following the 7-3 Pens win in Game Four:
“We're up against a monster here.” - Marc Methot
"Probably not," Alfredsson said. "[Pittsburgh's] depth and our play right now … it doesn't look too good." - Sens captain Daniel Alfredsson when asked if the Sens could beat the Penguins three times in a row
These weren't head games. These were professional hockey players knowing what they were up against. Here are some quotes from the Sens after the series:
"I hope they don't charge us for the clinic." - Sens coach Paul MacLean
"Probably not since back in the days when I played the video game." - Erik Karlsson when asked about the last time he's seen a team as dangerous as the Penguins.
The Pens are now halfway to the prize, and this next series against the Bruins will be a good one. Before that happens, though, we're gonna take one final look at this series against the Senators.