Andrew Z. answered 03/16/19
Writing Expert with Masters in Creative Writing and 6 Years Experience
Hi Gianna,
this is a perfectly understandable and correct usage of this phrase. Other options are "finally, developing a new doctrine" "finally, building a new doctrine" "finally, establishing a new doctrine". There are actually many ways to do this, but yours is totally fine. Feel free to contact me if you'd like some help in the future.
-Andrew