At  20:07

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 e5 9. dxe5 Nxe5 10. Bf4

Nfd7 is the stronger move, but 10...Rd8 is not a "blunder" by any means, according to F13 Livebook it has appeared in 103 games. After 11.Qc1 black does not play 11...Nfd7 as you advise but instead plays 11...Bd6 and he does not appear to be losing. However, according to the Game Explorer function on this website, white seems to be doing pretty well irrespective of what move black chooses to play in this position.

Btw, that was a pretty impressive game by Lendermann.

I am definately a novice but with  fritz on with the engine off so that I can play the moves, the ability to pause and rewind the video these videos are fantastic. 

Don't expect to watch them and understand straight away be prepared to study what you hear and you will get lots out of them.

Very instructive, thank you.

See Below.....

Terrible Video Lectures.... 

How to Play the Queens Gambit I, II, III 

I'm sure iv and v is just the same.....

Moving extremely fast to absorb the Main theme...

Just a bunch of Jargon, over and over... 

Two Thumbs Way Down

I've watch videos here @chess.com Where the Masters and Grand Masters gives Us Ideas, Methods, Principles, and new Approaches....

that we can take into game after game, with a new horizon...

here its like book openings, moves, after moves, with  no  real understanding nor any real concepts ....

Two Thumbs Way Down...

In Addition: To give credit  IM Sam Shankland 

Chess Mentor Courses are Superb, extremely excellent....

I just believe he needs some Polishing on his Video Presentations...

Two Thumbs Way Up!

"By the way, has any one noticed how there's less and less views for a series as it gets farther in?"

Well you wouldn't expect it to be the opposite, would you?

Sam you made a mistake at 6:27 instead of white playing Pxb3 you can play the imbetween move bxg7 check and white is now up a pawn and I think has better chances of winning the game

Good video, I'm going to have to watch this series and the passive queen pawn series again.

By the way, has any one noticed how there's less and less views for a series as it gets farther in?

A rich opening filled with alot of positionally dominated chess.  Thanks

instructive