So just to add to this debate, here are the all the #1 centres in the league and where they are drafted from. Some of these are good, some of these are bad. Because I don't get to watch all of the teams all of the time, in some cases I used TOI as an indicator of who the #1 centre on a team is. This may lead to some discussion over who the number one centre is on a particular team.
Ananhiem - Ryan Getzlaf, Drafted by Anahiem in the 1st round, 19th overall
Arizona - Antoine Vermette, Drafted by Ottawa in the 2nd round, 55th overall
Boston - David Krejci, Drafted by Boston in the 2nd round, 63rd overall
Buffalo - Zemgus Girgensons, Drafted by Buffalo in the 1st round, 14th overall
Calgary - Sean Monahan, Drafted by Calgary in the 1st round, 6th overall
Carolina - Eric Stall, Drafted by Carolina in the 1st round, 2nd overall
Chicago - Jonathan Toews, Drafted by Chicago in the 1st round, 3rd overall
Colorado - Matt Duchene, Drafted by Colorado in the 1st round, 3rd overall
Columbus - Ryan Johansen, Drafted by Columbus in the 1st round, 4rth overall
Dallas - Tyler Seguin, Drafted by Boston in the 1st round, 2nd overall (not going to lie, this hurt)
Detroit - Pavel Datsyuk, Drafted by Detroit in the 6th round, 171st overall
Edmonton - Ryan Nugent-Hopkins, Drafted by Edmonton in the 1st round, 1st overall
Florida - Nick Bjugstad, Drafted by Florida in the 1st round, 19th overall
Los Angeles - Anze Kopitar, Drafted by Los Angles in the 1st round, 11th overall
Minnesota - Mikko Koivu, Drafted by Minnesota in the 1st round, 6th overall
Montreal - Tomas Plekanec, Drafted by Montreal in the 3rd round, 71st overall
Nashville - Mike Ribeiro, Drafted by Montreal in the 2nd round, 45th overall (this is who I think Kadri plays like)
New Jersey - Travis Zajac, Drafted by New Jersey in the 1st round, 20th overall
New York (Islanders) - John Tavares, Drafted by New York Islanders in the 1st round, 1st overall
New York (Rangers) - Derek Stepan, Drafted by New York Rangers in the 2nd round, 51st overall
Ottawa - Kyle Turris, Drafted by Arizona in the 1st round, 3rd overall
Philadelphia - Claude Giroux, Drafted by Philadelphia in the 1st round, 22nd overall
Pittsburgh - Sidney Crosby, Drafted by Pittsburgh in the 1st round, 1st overall
San Jose - Logan Couture, Drafted by San Jose in the 1st round, 9th overall
St. Louis - David Backes, Drafted by St. Louis in the 2nd round, 62nd overall
Tampa Bay - Steven Stamkos, Drafted by Tampa Bay in the 1st round, 1st overall
Toronto - Tyler Bozak, Undrafted, signed by Toronto
Vancouver - Henrik Sedin, Drafted by Vancouver in the 1st round, 3rd overall
Washington - Nicklas Backstrom, Drafted by Washington in the 1st round, 4th overall
Winnipeg - Bryan Little, Drafted by Atlanta (which is now Winnipeg), in the 1st round, 12th overall
So in that list, there are only two cases of first line centres playing on teams that did not draft them. I think the Shanaplan should be pretty clear here.
Ananhiem - Ryan Getzlaf, Drafted by Anahiem in the 1st round, 19th overall
Arizona - Antoine Vermette, Drafted by Ottawa in the 2nd round, 55th overall
Boston - David Krejci, Drafted by Boston in the 2nd round, 63rd overall
Buffalo - Zemgus Girgensons, Drafted by Buffalo in the 1st round, 14th overall
Calgary - Sean Monahan, Drafted by Calgary in the 1st round, 6th overall
Carolina - Eric Stall, Drafted by Carolina in the 1st round, 2nd overall
Chicago - Jonathan Toews, Drafted by Chicago in the 1st round, 3rd overall
Colorado - Matt Duchene, Drafted by Colorado in the 1st round, 3rd overall
Columbus - Ryan Johansen, Drafted by Columbus in the 1st round, 4rth overall
Dallas - Tyler Seguin, Drafted by Boston in the 1st round, 2nd overall (not going to lie, this hurt)
Detroit - Pavel Datsyuk, Drafted by Detroit in the 6th round, 171st overall
Edmonton - Ryan Nugent-Hopkins, Drafted by Edmonton in the 1st round, 1st overall
Florida - Nick Bjugstad, Drafted by Florida in the 1st round, 19th overall
Los Angeles - Anze Kopitar, Drafted by Los Angles in the 1st round, 11th overall
Minnesota - Mikko Koivu, Drafted by Minnesota in the 1st round, 6th overall
Montreal - Tomas Plekanec, Drafted by Montreal in the 3rd round, 71st overall
Nashville - Mike Ribeiro, Drafted by Montreal in the 2nd round, 45th overall (this is who I think Kadri plays like)
New Jersey - Travis Zajac, Drafted by New Jersey in the 1st round, 20th overall
New York (Islanders) - John Tavares, Drafted by New York Islanders in the 1st round, 1st overall
New York (Rangers) - Derek Stepan, Drafted by New York Rangers in the 2nd round, 51st overall
Ottawa - Kyle Turris, Drafted by Arizona in the 1st round, 3rd overall
Philadelphia - Claude Giroux, Drafted by Philadelphia in the 1st round, 22nd overall
Pittsburgh - Sidney Crosby, Drafted by Pittsburgh in the 1st round, 1st overall
San Jose - Logan Couture, Drafted by San Jose in the 1st round, 9th overall
St. Louis - David Backes, Drafted by St. Louis in the 2nd round, 62nd overall
Tampa Bay - Steven Stamkos, Drafted by Tampa Bay in the 1st round, 1st overall
Toronto - Tyler Bozak, Undrafted, signed by Toronto
Vancouver - Henrik Sedin, Drafted by Vancouver in the 1st round, 3rd overall
Washington - Nicklas Backstrom, Drafted by Washington in the 1st round, 4th overall
Winnipeg - Bryan Little, Drafted by Atlanta (which is now Winnipeg), in the 1st round, 12th overall
So in that list, there are only two cases of first line centres playing on teams that did not draft them. I think the Shanaplan should be pretty clear here.