i use a large whiteboard too. In addition to the colored markers, I use a bunch of different size and color post-it-notes that I can rearrange as needed. That is mostly helpful for me because I can take the notes off the whiteboard and put then on the files I am working on when necessary.
I would say you are seriously understaffed, and that is completely normal. I.T. sucks. I got out of that field to pursue electrical engineering.
i use a large whiteboard too. In addition to the colored markers, I use a bunch of different size and color post-it-notes that I can rearrange as needed. That is mostly helpful for me because I can take the notes off the whiteboard and put then on the files I am working on when necessary.