We guides work, rather that executing it. Think of the position as someone who tells you what to do rather than doing it himself. Strategy is the creation of goals and how to get there, while tactics are the tools you use to do the job.

Valuation
Quantitative process of determining the fair value of an asset or a firm.
Company can be valued on its own on an absolute basis, or else on a relative basis compared to other similar companies or assets.
Valuations can be quickly impacted by corporate earnings or economic events that force analysts to retool their valuation models.