Well Pete and Tristan can go deep into games so you shouldn't be worried anymore about saving your bullpen for the end of the weekend. I don't know how many follow college baseball across the country but Arkansas has this guy Kevin Kopps who has pitched 59.1 innings out of the bullpen in 25 appearances for Arky. Arkansas hasn't lost an SEC series all year, nor have they swept and you'll notice in just about every series, their one loss is when he doesn't pitch. They ride him on Friday and they ride him on Sunday. Tanner Witt isn't to Kopps level yet but he is the closest thing which is more than good enough. We have 3 really good bullpen arms which is more than just about any school in the country can say.
I would pitch Madden 4-5 innings and pair him with Witt for 2-3 maybe even 4 innings (pending how long Madden lasts) and then hand the game over to Aaron. Then on Saturday you are hoping Stevens gets you into the 6 or 7th and you still have a fresh Cole, Lucas, Wenzel, Shifflet, and maybe Aaron is available for an inning. Then Sunday you have Witt again and more than likely the rest of your pen in some capacity minus maybe Aaron. The game is fluid so it won't go exactly like that obviously but that is the framework I would operate in.
Tanner Witt this season against Arkansas/SCAR/A&M/TCU/Tech/OKST/WVU which to this point have either been the best teams we have played and/or something on the line: 18.2 IP, 2 ER, 30 strikeouts, and 5 walks... That is elite, we should be riding him. I know he allowed 4 base runners against Arky but when a Freshman comes in for his first D1 action ever and records 5 outs against the best team in the country, all by strikeout, you have something special.