This post will work under the assumption that all of these moves are logistically and financially viable.
(1-4) Begin a brand war between NXT and RAW:
Premise: There's a passion in NXT similar to Paul Heyman's Smackdown, and I'd use that to try and bring wrestling to a level it hasn't seen in years. Use Beaking Ground, Tough Enough and performance center specials on the Network if you want to continue showcasing your greenest talent, but make NXT a legitimate rival of RAW instead of a simple farm system meant to produce talent for the main roster writers to abuse.
(TLDR) The WWE has always been at its best when facing its greatest competitors, and for the first time in a decade, they have the ability and the wherewithal to simulate that competition themselves.
Corporate: The Network already operates under a TV-14 rating and I'd expand the show to work under those parameters; not as vulgar as Ruthless Aggression but far less restricted than PG. Boost NXT to a two-hour live slot exclusive to the Network and bring RAW back down to two hours to compensate. Bring in Heyman in a talent relations capacity (similar to Dusty's old role), where he doesn't have to deal with daily stress of creative, but can still get that old rush of pumping up his guys backstage.
(TLDR) Use Heyman's passion and creativity to compliment Triple H's own selling point for NXT: an edgier and more indy-geared alternative to RAW.
On-Air: Name Heyman the Chairman of NXT, making sporadic appearances to take part in major feuds. Move Regal to work as director of talent relations and bring in Kurt Angle as GM. Regal can be the "good parent" authority figure that the wrestlers go to when they need someone to stick up for them, but you often have him work on a "my hands are tied" level versus the cunty heel GM in Angle. Triple H can be named "Owner of NXT" to put a head even above Heyman.
In this dynamic, you have Regal and Angle appearing weekly, Heyman a few times a year, and Triple H once or twice bi-annually. The goal is to have a less convoluted version of Vince > Triple H > Maddox > Vickie.
(TLDR) New Kayfabe Administration: Triple H (Owner - "The Vince") > Heyman (Chairman - "The Triple H") > Angle (GM - "The Bischoff") > Regal (Talent Relations - "The Johnny Ace")
Production: Maintain the "black mat/white ropes" set used at TakeOver Brooklyn to make the show feel like a "reverse-RAW". Give Big Show a retirement ceremony on the main roster and bring back Jim Ross; have the two of them join Graves on commentary at NXT.
(TLDR) New Commentary: Jim Ross (play by play), Big Show (color - face), Corey Gaves (color - heel)
Talent: Revisit negotiations with the Briscoes and see if they'll bite on a contract exclusively for NXT; Jay Briscoe could be to NXT what Stone Cold was to the WWF (on a smaller scale, obviously). Sign the Young Bucks and bring down Ziggler to team with Breeze, making a strong tag division much stronger. Revert Adam Rose to his Leo Kruger persona and re-sign Chris Hero. Have Hero debut as the leader of a new "old hogs" stable, consisting of himself, Kruger, Samoa Joe and James Storm.
Bring in Jeff Hardy and Rey Mysterio on light working schedules with an aspect of helping younger talent, as well as working with coaches and trainers to design/enhance a drug and injury rehab program. The company will get good publicity and being able to work with younger wrestlers should help both guys battle their own issues.
(TLDR) Sign Jay Briscoe to be Austin-esque face of NXT. Sign Young Bucks, pair Breeze/Ziggler. Revert Rose back to Leo Kruger; team Kruger with Storm, Joe and a returning Chris Hero. Bring back Jeff Hardy, Mysterio.
Booking: Culminate NXT's yearly booking with a massive pay-per-view on the Friday night before Mania (Go-Home Smackdown Thursday, NXT Friday, Hall of Fame Saturday, Mania Sunday, Post-Mania Raw Monday). The post-Wrestlemania crash has long been a plague for the WWE, with how hard it is for them to retain their viewership and subscribers once the Wrestlemania buzz wears off. Extend Wrestlemania season for another month by debuting a new PPV (WWE War Zone?) or moving up something like WWE Battleground, with a card featuring every NXT champion clashing with their WWE rival counterpart, fighting to earn a year of bragging rights in favor of their promotion. It'll be the first time in history that they've actually increased the prestige of a Wrestlemania victory, because not only are you now fighting for your own Wrestlemania moment, you're very likely fighting to be a representative on the WWE's Battleground roster.
It's been said many times that Lesnar has gotten so big that there's no one wrestler who is easy to justify as deserving of the "beast-slayer" rub. Why not give that rub to an entire promotion? Have Lesnar fight on an NXT card a single time, and have the leading NXT representative (someone like Zayn, Cesaro, Jay Briscoe) beat him. Not only will it make that guy a star for life, it'll give NXT the instant credibility it needs to hang with the WWE.
(TLDR) Host NXT equivalent of Wrestlemania on Friday before Mania. Move Battleground to PPV after Mania and have all NXT champs face WWE champs for bragging rights. Have Lesnar lose to face of NXT to give rub to the whole promotion as opposed to one guy who WWE will mismanage anyway.
(5) Sign myself to an ironclad contract as head of creative, WWE.