By competitive, I mean compete for a championship. So no, I wouldn't say your team is competitive with a 13 win season. That said, if you got what you wanted out of the season, good for you.
For perspective, I won 15 games last year and spent only one week above the salary floor. I made the same goal as you (to stay in div2), but my priority was to make as much money as possible. I was earning between $220-250k every week while having more wins than you with a harder draw. Was I competitive? No. Did I accomplish what I set out to achieve? Sure.
If an NT player is your priority, then you have a gun player to show for it. I'm merely telling you that you won't compete for a div2 title with over half your salary tied up in one position.