them two bums don't provide nothing close to Bismack & Noah...
Noah has been a shell of his former self over the last two seasons by being a liability on the offensive side of the floor, plus his defense has taken a significant hit due to his inability to stay healthy with his body breaking down. Both players function and exist on offense because of their abilities to crash the glass, pass the ball and set screens (impact similar in these areas, and this is with Noah getting more touches on offense), as they're limited in what they can do elsewhere.
Noah last season - 29 games played - 4.3 ppg on 38%, 8.8 rebounds, 3.8 assists, 1.0 blocks, 0.6 steals in 22 minutes - opponents shot 52% at the rim against him
Zaza last season - 76 games played - 8.6 ppg on 46%, 9.4 rebounds, 1.7 assists, 0.6 blocks, 0.8 steals in 26 minutes - opponents shot 52% at the rim against him
You could make a case that Zaza is better than Noah at this point of their respective careers, due to his ability to stay on the court as well as being more productive - that might change however if Noah can rekindle his game and stay healthy in NY.
On Dedmon v Biyombo -
A lengthy rim protector who grades as an elite rebounder and who can struggle on the offensive end of the floor. While Dedmon shot 55.9 percent last season, the bulk of that scoring was around the rim and he took just 30 field-goal attempts outside of 10 feet. He’s essentially a lob threat only, with few ball skills, though his assist rate ticked upward and he posted the best true-shooting percentage of his career this year (60.6 percent, thanks in part to a surge to 75 percent from the line). He’s a high-energy player who subsists primarily on easy buckets, and he’s improved in each of his subsequent seasons.
Defensively, Dedmon allowed opponents to shoot just 45.7 percent at the rim when he was in defending distance and had a 34.6-percent contest rate, numbers nearly in line with Biyombo’s in a smaller sample, per Nylon Calculus. Advanced metrics and on-off numbers don’t show Dedmon’s impact being nearly as extreme at the team level, but his overall impact graded
quite strong by DRE. Individual stats, particularly on the defensive end, need to be taken with the proper context, but Dedmon’s small-sample results are at least encouraging.
Biyombo is the better defender, but he was also aided (cue his team DRTG and DRPM) by the fact he played in a better defensive scheme with better defensive pieces (Lowry, Patterson, Joseph and DeMarre) in the bulk of the lineups he was in.
While he doesn't provide the same degree of impact as Biyombo - he certainly isn't far off it.
Dedman is literally

Festus Ezeli is better then him... how you 7ft tall and get less then 5 rpg & .8 bpg?
Because he only plays limited minutes (12.2 minutes per game last season - how the fukk is he suppose to average more than that given his minutes?). It sounds like you're just looking at the box score rather than watching him play.
Zaza not even close to Bogut, he not gon be catching lobs, not gon be blocking shots, he'll get some boards tho.
I. What does Bogut have to with my post on comparing Noah and Zaza?
II. Zaza is the better rebounder, more reliable and active offensive player (plus can hit FTs at a considerably better rate), more reliable to stay on court and remain healthy, can play down the stretch and is better at defending the PnR.
nikkas basically got another Anderson Varejao...
He's a lot better than Varejao, and if you had watched the Mavs last season you'd know this.