Organizations successful at strategy implementation consider the human resource factor in making strategies happen. Further, they realize that the human resource issue is really a two part story. First, consideration of human resources requires that management think about the organization's communication needs. That they articulate the strategies so that those charged with developing the corresponding action steps (tactics) fully understand the strategy they're to implement.
Second, managers successful at implementation are aware of the effects each new strategy will have on their human resource needs. They ask themselves the questions... "How much change does this strategy call for?" And, "How quickly must we provide for that change?" And, "What are the human resource implications of our answers to those two questions?"
In answering these questions, they'll decide whether to allow time for employees to grow through experience, to introduce training, or to hire new employees.