Jared, skip the floor system, esp if this is a remodel...as Jim said, just get a robot and you're good to go.
If you PM this yourself, the KEY TO IT ALL is what you get in writing upfront and setting proper expectations upfront w every sub and in writing. Don't make it too complicated but do spell it out. Also, if you do PM it, buy the guys doing the work lunch a couple times and get to know them somewhat...not a life story, but that you want them to know you appreciate their work done right. I would also allow some for "performance bonuses": All detail is done right, clean up their messes, respect property and other subs work. Most of the these subs come in and go out and they're gone...a little special attn., good food and other and it will pay off.
finally, the only hiccup when your getting things in writing, is sometimes bc you do not have the pool building experience, you don't know what to look out for, thus state or ask upfront. most contractors build in $ome buffer for thi$. this is where you can win or lose. However, your job is not super complicated if you take out the flooring system. On tile work, make sure they toss out any defective pieces - tell them you will return to seller and exchange for them...make sure things are spaced evenly and consistent, but you cannpt nitpick every move they make [unless they are horrible which means you hired the wrong crew] - ask for references and go see their work...you also have to be able to build in contingencies, esp if it's weather related...again, not rocket science, but attn. to detail - good luck, tstex