Watch this short 4mins video that talks about this shift...
The 4 major shifts that a startup needs to make, in order to be successful for the scaling-up journey. 2nd Shift is from focusing on only Sales to developing a Differentiated Strategy for sustainable growth.
If growth is not consistent, even with the BEST "sales" operations, then maybe your strategy is not CLEAR, RIGHT or ALIGN. Are you just a "better" company or are you doing something "different" for a unique and valuable position in the market?