It's been a long time since I've crimped cable, but the order of the colors for the cable that's already been crimped in the wall does not appear to match any diagram I've found online. Here's the best picture I've managed to take:
The installer switched a few of the pairs so it was neither 568A or 568B. I've been told that although this will likely work to wire it as it has been done, it would be better to redo what is in the punch plate so that it is either 568A or 568B; there is more likely to be degradation of signal and/or increased crosstalk on the line if the pairing doesn't adhere to one of the standards.
The installer is an idiot. You do not make up your own color code as you go, otherwise it makes it difficult to troubleshoot and for anyone else afterwards as it doesn't conform to any standard. I would wire it all T568B at every termination point period! If you want a crossover you change one end to T568A. The End. Its your wire though so do what you like.