Most of the time when I see people train throughout the week, they ALWAYS start MONDAY with their favorite or strong point body parts. Usually chest or arms. Towards the end of the week, they train the weaker bodyparts. Usually legs, calves, abs.
Here's the problem. Mentally it's always easier to RESTART then to keep going. In other words, ususally by the end of the week, the ENTHUSIASM for working out wanes on Thursday and Friday because most people are ready to PARTY for the weekend.
RESULT: You might not train your weaker bodyparts as INTENSE as you stronger ones.So switch it. I hate doing Hamstrings and abs. So I train them on Monday. I love training Quads, so I do that on Friday. Consequently you are MORE apt to keeping up the INTENSITY because you are training a bodypart near the end of the week that you LIKE TO DO.
Think about it.