No. 4. c3 and you lose a piece.
3. ..Ne5 is better but if you play that you might as well start with Nc6. the c-pawn is misplaced on c5, so later on you can't bring out your dark-squared bishop.
My new opening

No. 4. c3 and you lose a piece.
3. ..Ne5 is better but if you play that you might as well start with Nc6. the c-pawn is misplaced on c5, so later on you can't bring out your dark-squared bishop.
Is it okay?