In this position in the Exchange Caro-Kann:
[FEN "r1bqkbnr/pp2pppp/2n5/3p4/3P4/2PB4/PP3PPP/RNBQK1NR b KQkq - 0 5"]
the computer suggests one of the continuations as:
[FEN ""] 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. h3 e6 7. Nf3 Bd6 8. O-O Nge7 9. Re1 O-O 10. Nbd2
However, the computer's top choice was to go 5... Nf6 instead of 5...Qc7, indicating that the knight on f6 isn't that bad on its own. This means that our position has something which needs the knight on e7.
Why does the black king's knight not go to f6 HERE?