Step 1: Understand the context of the quote.
This quote emphasizes that management is about developing people (employees) rather than just focusing on the direction of resources or things.
Step 2: Identify the author.
- Lawrence A. Appley is known for his work on management and leadership, making him the correct author for this quote.
- The other authors, while influential, did not make this particular statement.
Step 3: Conclude.
This statement is famously attributed to Lawrence A. Appley.
Final Answer:
\[
\boxed{\text{Lawrence A. Appley}}
\]