The 27-year-old is a free agent at season's end, and while he's given no indication of his intentions either way, contract negotiations aren't a priority.
Originally from Ballarat, Rosa concedes free agency does provide something to think about, particularly for players who have moved from their home state.
"It definitely does cross your mind, obviously a lot of family and friends back home, but I think also [I'm] very lucky to be in an environment like West Coast that provides all the facilities and the support that you could really ask for," he told AFL.com.au.
"I'm really enjoying it over at West Coast at the moment, and enjoying the group we've got," he said.
"I guess we'll sort of worry about the contract stuff a bit later in the year."
But Rosa said he was open to discussions earlier if that was what the club wanted.
"It doesn't bother me too much either way, I just went into this year just wanting to get my body right and get out on the park and play good footy," he said.
"That's been my main focus and still is my main focus, so I'm just worrying about that at the moment."
And that approach is understandable: Rosa's career has been punctuated by various injuries, with compartment syndrome and a back complaint keeping him to just 11 games in 2013.
Now in his 10th season with the Eagles, Rosa has played 141 games for the club.
He is ranked 258 overall in the Official AFL Player Ratings, but trending upwards after playing four games so far in 2014.
Overall, Rosa believes free agency is overall good for the game.
"I think it's definitely good for players to have that option if they do decide they want to go home, or if they're struggling to get a game at their club they can move on to a club of their choice," he said.
Twitter: @MattThompson
