If you find yourself having to abandon most of your investments before you can receive a return you eventually will have nothing left. It takes twenty-four months for an elephant to give birth. Getting eight pregnant won't produce a herd of eight in three months. Some things just take time. You can't invest in everything - you have to chose.
Strategic planning provides a process to help choose wisely.
Strategic planning is about deciding what you want to be in the future and translating that into a focus on what you need to invest in today . If your industry is changing rapidly perhaps your view of the future is of a company with proprietary rapid development technology that allows it to be the first to respond. The longer the payback of a given investment, the better the fit has to be with your envisioned future. The process is as important as the plan. The team planning process is as valuable as the plan it produces.