Step 1: Recognize the importance of employee training.
Training is a critical part of any organization to ensure employees have the necessary skills and knowledge to perform their roles effectively.
Step 2: Evaluate the options.
- Training employees is necessary as it ensures better performance, reduces errors, and enhances overall organizational productivity. It is not just compulsory but essential for sustained growth.
Step 3: Conclude.
The correct answer is Necessary as training is crucial for improving employee effectiveness.
Final Answer:
\[
\boxed{\text{Necessary}}
\]