I wrote some programs in Python that basically reduced lead times and labour costs. I am having difficulty in expressing the whole idea; it's becoming too wordy and hard to follow.
Let's start with a simple version:
A. I created a program in Python that automated the process of integrating and matching data from multiple sources, thereby reducing expected lead times and labour costs significantly.
The above sentence is pretty clear, and I am satisfied with it. Note that there are two important ideas in the sentence: (1) the program automated a process, and (2) reduced lead times and costs. I want both ideas to have equal emphasis.
When I add a second process to the sentence A, it just falls apart and becomes a mess.
B. I created programs in Python that automated the processes of running multiple regression models with different sets of variables, and of integrating and matching data from multiple sources, thereby reducing expected lead times and labour costs significantly.
It's just disgusting. First, the expression "the processes of x and of y" is for some reason terrible. It just doesn't flow well. Second, the "reduced lead times and costs" idea is too far removed and has lost its impact.
Here's what I have tried to keep a balance between the two ideas, but I am not sure if this is an improvement over sentence B.
C. I created programs in Python that automated two key processes (running multiple regression models with different sets of variables, and integrating and matching data from multiple sources), thereby reducing expected lead times and labour costs significantly.
The second idea is still too far away. Perhaps D is better?
D. I created programs in Python that significantly reduced expected lead times and labour costs by automating two key processes: running multiple regression models with different sets of variables, and integrating and matching data from multiple sources.
I can see D having that balance between the two ideas. Also, one could argue that bringing the second idea (= reduced lead times and costs) to the front is an improvement as that is exactly what a hiring manager would care about - the result of the programs, and not what the programs did.
What can I change to ensure that the sentence conveys the two ideas as clearly as possible, and that it is not too wordy or hard to follow? Is D my best option, or is there a better way to say this?