and, quoting the above:
The line of best fit for the data of GIR vs score is 95 - 2 * GIR. That's probably where @reidsou's number came from. Note that, even if we treat it as the standard goal (I agree with you, as you'll see in a moment), an average 11-GIR round probably has one or two birdies thrown in, and I'd bet that most of those missed greens in such a round (again, for an average 11-GIR round) are probably very much near-GIR.
That having been said, there are some of us, such as the original poster on this thread and I, whose long game is such that more than seven GIR isn't unheard of (which that formula would "predict," if we use it to predict at least, a round in the 70s) but who still score in the 80s. I even recently had a round with 9 GIR and a score of 90 -- which is why 95 - 2 *GIR isn't meant to predict any individual's score, but does still highlight the importance of GIR and ball striking.
Which brings me to my next point, which is also @Shorty's next point: yeah, 50% chipping and putting is not the way to go, certainly not long term. Maybe with the goal of getting those traits to about an average 20-handicapper's level (without sacrificing approach shot strength), and then using the 15/20 time productively in future weeks to improve on them. The nice thing about chipping and putting is that there is some low hanging fruit as far as getting competent goes, especially if one is building off the sort of short game shots that come from missing fewer than half of one's GIRs.
The "me" guy. He has no idea what is going on around him. Only focused on his game, and not in a good way. He may as well be on the golf course by himself. Never a "nice shot" or "good putt", instead still mumbling about a shot he hit two holes ago. The "me" guy usually thinks he is a way better player than he really is.