If you're only going to do 1 week in secondary, I would just go for 3 weeks in primary and skip secondary altogether personally. But yes you would be fine doing it like that (provided fermentation had completed).
If you would like to do it that way its fine - makes more sense the other way. I find when you have it insecondary for 2 weeks its clear. One week in secondary it clears some but still a lil foggy. In the end wont make a heck of alot of difference though.