Disclaimer: I am just putting some ideas out there. I may be mistaken. If what I say is different than what anyone else says, they are probably right.
I thought about this paradox a lot. I think I have found a way to resolves it. I remember a couple of quotes I read but not where their from. One was that Hashem holds the keys to three things: rain, resurrection and conception. Another quote was that a blade of grass does not grow unless an angel in heaven commands it to. These two quotes are neded to resolve the paradox explained above.
First lets define the problem. Chassidic writing state that everything happens because of Hashem's will. Also, if Hashem were to stop actively sustain the world, it would immediately collapse. On the other hand, Rambam says Hashem is not in control of anything. It is well known that Hashem is omnipotent, omnipresent and omniscient. Therefor, Rambam is saying that although Hashem could do everything personally, he chooses to give the active intellect power. The question is, "Does Hashem work alone or does use (but, not need) others?"
Combine the above qoutes with these, and you reach the conclusion. Hashem controls some things that are of unequaled importance while granting permission allowing the angels to control everything else. This means for field of grass to grow Hashem makes the rains fall, then commands the angel who controls the plants to make that grass grow (who commands the angel beneath him, who commands the angel beneath him ... until every angel who controls a particular blade of grass in that field receive Hashem's word. This aspect of the idea I personal created, so it may be wrong) Although the angel(s) is the one to preform the act, it only does so because Hashem desires that it be done. Everything is done because Hashem wants it to be done, which is what the Chassidic Masters say, and Hashem may or may not use angels (active intellect) to preform the act, which is what Rambam says.Thus the paradox is solved.
If someone has any questions, comments, objections, ect. I will happily attend to them to the best of my abilities.
--some_guy/Elias/Eliyahu