what area of strategy to specialize in ?

Another common question by prospective management students:
What area of strategy to specialize in?

Answer:
What area depends on what you want to do and your skillsets.

Option 1:
If you have good project management skills then you might want to do implementation of strategy. This is important because it is often found that the implementation of a strategy fails to match with the original vision and goal of the project (I consider an entire business as one large project here)

Option 2:
If you do not have good project management skills but have good analytical skills w.r.t. market research, economics (both macro and micro), design skills, etc then you might consider designing the strategy as your option.

For best results, a firm is well-off giving the design work to someone who has these skills as well as possesses the experience mentioned in the earlier option. Experience is important in order to make the design "pragmatic". Often, the companies cannot procure such folks and do a trade-off on either experience or design skills due to shortage of time.

Bottomline: Get a better grip of fundamental concepts for the field before thinking of strategy area. It is a buffet dinner out there - you yourself need to figure out what suits your palate, appetite, and digestive system.