3 Nights LA
1 Night Monterrey - Spend a day driving up to Monterrey, explore the small towns and Big Sur on the way.
2 Nights Santa Barbara - Spend the day doing all the stuff around Monterrey, Camel and Pacific grove and then had up to Santa Barbara in the evening, you then have the full day here the following day.
3 Nights SF
You need to swap Monterey and Santa Barbara around - SB is near LA and Monterey is near SF.