This how I would put the lines:
Pacioretty - Desharnais - Gallagher ---> offense
Galchenyuk - Briere - Vanek ---> offense
Eller - Plekanec - Gionta ---> shutdown
Moen - White - Prust ---> energy
Bournival/Bourque/Wiese/Parros ---> extras
If Eller is to be the next Plekanec, then no better than to have Plekanec as his linemate. Also, Plekanec and Gionta should no longer be counted on for offense and should focus on shutting down the opposing team's top line. Vanek needs better playmakers and Briere and Galchenyuk are better suited. 1st line well no explanation there.