You'll get different answers depending on each person's political viewpoints. In my opinion it is "sort of" trying, I would rate a 5/10 maybe, but it honestly matters relatively little what it tries or doesn't try, at least within the broad framework that all the mainstream parties have accepted (stay in the Euro, work with the EU/IMF "memorandum" process). The government does not have a lot of freedom to act over policy except at the margins in that situation, because it's entirely constrained by the now-eternal fiscal crisis, and the fact that its budget and the conditions for money being released are not really under its control. This even extends to specific detailed laws that the government is allowed to pass or not, not just general principles like what size of budget surplus is required.

I personally don't think the Syriza-ANEL government is doing the best it can under the circumstances, as it claims to be. But I also don't think that if another party were in power, Greece would be seeing rapid economic growth or anything. We're talking about whether they would manage a bit better or worse at the margins, within a generally bad situation that requires a solution beyond Greece's unilateral control.