Problem is that Toronto seems to have us figured out in the Brad Stevens era more so than most other teams. Gonna have to work out a better game plan to beat them and take the head to head match up.
I don't see it as a problem. We have figured out them too. It is not like they surprise us when we play, or ever did. The harder part is to execute good enough to win.
One thing that is worth noting is that even though their bench is one of the better in the league, I believe that come playoffs they will shorten their rotation and that advantage will diminish greatly. When, on the other hand, Horford and Kyrie play 7-8 more minutes per game more, we would suddenly look much better (No Semi, no Nader and other "minus" players too. No Zeller this year!).
Toronto has its own well-recorded annual playoff "sins". They sinned long enough to exclude themselves from any superior confidence stance or any intimidation efforts. They do have the best team in 22 years of existence, good deep team, but they have a lot of explaining to do.
EDIT:
Toronto's Playoff GM1 results
2014: 1st round, BKN - Loss
2015: 1st round, WAS - Loss
2016: 1st round, IND - Loss
2nd round, MIA - Loss
EC finals, CLE - Loss
2017: 1st round, MIL - Loss
2018:
??
If we beat them in the first game of the series (something that happened in their last 7 series if I'm not mistaking, the water level rises to their mouth height and it is choke-alert all over again in T.
To sum it up. We will make some new fossils this year.