In the Bruins and Rangers series the Sens would have a game or a few periods of passive defense but as soon as they were behind a goal or in  overtime they changed tactics..
Andy is playing great now but through most of  the playoffs  he was mediocre to  downright scary and the team had to scramble to come back from the hole he put them in. Those games were exciting as the Sens fought back through Karlssons  heroics or Bobby Ryan or JG Pageau 

It is when they have a lead that they seem to try to play for who knows what-overtime? .

Against the Pens they have either  been tied or with a lead and in the last game their offence only really came alive after the Pens scored.

The good news though is that it is frustrating the Pens stars who are providing lots of entertainment with their outbursts and infighting..