Here are two statements. Rewrite the second statement to show causal relationship between the two statements.
Gary developed a new set of skills; he began to manage projects more efficiently.
After developing a new set of skills, Gary was able to manage projects more efficiently.
Complete the following task based on the instruction and optional input provided.### Instruction:
Here are two statements. Rewrite the second statement to show causal relationship between the two statements.

### Input:
Gary developed a new set of skills; he began to manage projects more efficiently.

### Output:
After developing a new set of skills, Gary was able to manage projects more efficiently.