The problem was 2013-2014.
The team had Desharnais, Plekanec, and Eller as centres already. The team seemed to want Eller to one day replace Plekanec so they had him as a third line defensive forward. They also just re-signed DD to a four year deal, and Plekanec was the guy expected to do the heavy lifting on the road.
What they should have done was:
- Convert David Desharnais into a left winger
- Not sign Danny Briere
- Sign Jaromir Jagr
That would allow the club to go with
Pacioretty - Plekanec - Jagr
Desharnais - Galchenyuk - Gallagher
Bourque - Eller - Gionta
Prust - White - Parros
In doing so, DD would be able to play full offence and take the occasional defensive zone faceoff while Galchenyuk has two skilled wingers. The top line would be more than fine with their responsibilities, and Gionta would be effective on the third line.
Instead, the team double downed on Desharnais as a centre for multiple seasons while Galchenyuk struggled to get proper minutes at centre. The effectiveness of that lineup is you basically run a 2A/2B where it's okay if Eller's line gets a few more minutes due to effective offensive play. But at the same time, Galchenyuk learns his role at centre early enough to develop faceoff skills and the speed/tempo of top six hockey.