While I agree this will be very important, as long as they are a couple games over .500 going into April, they should be able to slide into the playoffs, at which point all that matters is whether they are healthy and clicking, and February will be a long lost memory.
Now, if they don't go at least .500 during this stretch, they are going to be in a tough spot, but at this point, home court is not likely, so really, they just need to finish with a better record than 4 of Toronto, New Jersey, New York, Cleveland, Milwaukee, and Orlando (Washington, Detroit and Charlotte are lost causes).