Generally, if you're not adding obvious value with: -better processes. -better accountability -better results... Well, then you DESERVE to have your clients poached by a highly committed, high-value provider. So, it's not "just selling" it's delivering the full package. Value. Results. Care. ...
No. The only way this could work is by outsourcing the people to other companies. But this would change the business you're in and you might as well just outsource the department to a company who does this already. If recommend reading a book called "The Goal" - it explains things better than me.
Strikingly.com is pretty good. Wix is also good. Squarespace also good.