I would consider:
-4 Professor Juniper +4 Brigette Juniper is a bit too aggressive for this deck in my opinion. You really don't want to be discarding too many resources and this deck basically just requires Durant to set up. Sure, every remaining Brigette will essentially be useless, but your goal is to get as many Durant on the bench as soon as possible so you really want this card in your opening hand if at all possible. Extra Brigettes would be ideal to toss with Ninjask if the opportunity arose.
-1 Ace Trainer +1 Teammates I think N does a better job disrupting than Ace Trainer. Except in the early game, of course. Teammates doesn't inherently disrupt as much as Ace Trainer, but it is an incredible consistency boost to a deck you know will be giving up prizes and you could even grab cards with which to disrupt your opponent.
-1 Team Flare Grunt +1 Team Rocket's Handiwork Milling is the name of the game with Durant and Team Rocket's Handiwork is too good to pass up in my opinion.
-3 Head Ringer -1 Xerosic +4 Puzzle of Time The recovery and flexibility of this card is too good to pass up. You could potentially turn a 4 of into an "8 of", or 1 of into a "3 of." It will help you get away with running some thinner lines of things. The meta is heading in more of a GX direction so I don't feel Head Ringers would do a whole lot of good, plus there are quite a few options for Tool removal in Expanded. One Xerosic is probably enough. Puzzle and Seeker should be enough to justify only running one.
-4 Pokemon Catcher +1 Rotom Dex + 1 N +2 Silent Lab Like mentioned above, prizing Durant will be a huge detriment to the deck's strategy. Silent Lab will be incredibly disruptive towards an opponent's set up. I don't like flippy cards too much, except for the Team Rocket's Handiwork. The deck is a bit low on draw power so I feel the extra N is much needed.
-2 Nest Ball +2 Random Receiver This is really only to increase the chances of a turn one Brigette. There are quite a few other supporters that would do little to help you set up so I do consider this a bit of a YOLO play. Keeping the Nest Balls to play it a little safer wouldn't be bad either.
-2 Super Rod +2 Rescue Stretcher. Durant don't do you a whole lot of good in the deck and Rescue Stretcher would effectively let you bench one immediately rather than shuffle a few in to the deck. If you need to recover more than 4 Durant, you are probably already fighting an uphill battle. If you were really worried about being able to recover Durants you could shuffle a few in instead if need be. I don't see you needing to recover energy very much unless things are really going South, plus Puzzle can grab energy in a pinch if need be.
-1 Dowsing Machine +1 Life Dew Durant are fragile. They will be knocked out at many points throughout the game, might as well try to grinch an extra prize (or two, or three with Puzzle of Time!) out of your opponent. Puzzle of Time can recover anything, plus more, that Dowsing Machine could.
While I may have suggested quite a few changes, keep in mind that they are only suggestions.
I tried to give a little reasoning to all of the changes I made, feel free to alter counts or completely ignore anything I suggested. I definitely feel like making all the changes I suggested might lead to a few hands that will brick on you but, at least individually, each piece of advice is fairly sound.
