"exactly follow" is a correct and usable phrase in written English.
It means to follow something precisely, without deviation or variation. Example: The instructions for assembling the furniture were very specific and must be exactly followed in order for the pieces to fit together correctly.
Nevertheless, she admitted, "I couldn't exactly follow everything he said".
Inconveniently, historical eras do not exactly follow the calendar.
Well, CS Lewis didn't exactly follow that pattern in this book.
The movie doesn't exactly follow the stories of its many characters, each stranger than the next; it's more like the movie stars Memphis in all its glorious peculiarity.
The article, which ran to more than nine thousand words, did not exactly follow the inverted-pyramid schema once taught in newsrooms and journalism schools across the land.
It seemed to exactly follow the pattern in fashion where you feel that a new identity can be precipitated by a handbag or a pair of boots.
QUESTION FROM ANDREW: Don't you think Johnson doesn't exactly follow this theory because he belonged to another generation and wasn't an idealist who starts big wars?
Cooper says he will not exactly follow in his father's footsteps: "I have no intentions of putting on silk pyjamas and smoking a pipe".
Microsoft's plan, announced Friday, to replace Steven A. Ballmer as its chief executive does not exactly follow — at least to people outside the company — the way they draft these things in business school.
With one victory from four starts, that coming in a Grade III stakes race, he didn't exactly follow through on the promise he showed in a brilliant 2-year-old campaign that ended with a victory in the 2000 Breeders' Cup Juvenile.
The first part of that scenario did not exactly follow the script, and as poor Mr Brown was wagging his tail and emitting plaintive little barks in public while sulking and brooding in private, the time available to work on the speech was steadily diminishing.
