I think the ITF tournaments should have less geographical spread. Why not have always have four consecutive tournaments in one location? That would save players a lot of money.
they are relatively tight spread i would say.
This example will get worn soon, but in Turkey you have like 50 Futures per year, if not more.
Normally things are going just normal in tennis, except that they perhaps could sync a bit the prize money with the inflation for the last few years, but otherwise i believe the system is a well oiled machine and might even be a bit over-oiled actually (a bit too many low level tournaments, which makes a number of players stuck in the lowest divisions, which makes it harder to gain enough points to make steps ahead...which results in having much less young players in the top ranks), but from a general point of view things are pretty OK i think.