PHOENIX -- After a grueling stretch preparing for the MLB Draft and then three days of making selections, D-backs scouting director Ian Rebhan finally walked out of the Draft room on Tuesday afternoon.

Arizona selected 21 players (15 pitchers and six position players) over the three-day event, including 20 from the collegiate ranks.

• Draft Central | Draft Tracker | Day 1 analysis | Day 2 analysis | Day 3 analysis

“I think we're all really excited about the group,” Rebhan said. “I think it's a good blend of really high-upside position players and pitchers. All those things come together to be a really, really interesting group, and it will be fun to watch them the next few years and see what they all turn out to be.

“But [it's a] really good feeling when you walk out of that room after kind of pulling your hair out over the last week-and-a-half.”

• D-backs take INF Tommy Troy with 12th overall pick

The work, of course, doesn’t stop. There are players who need to be signed and Minor League assignments that need to be made, and scouting for next year’s Draft is underway with Perfect Game’s 2023 National Showcase set for Tuesday night at Chase Field.

• D-backs continue down the college route on Day 2 of Draft

But that’s the future, let’s take a look at some things to know about Arizona’s 2023 MLB Draft:

Heavy on collegiate players
If there was a theme to Arizona’s Draft this year, it was the amount of college players picked.

The D-backs went with 20 collegians among their first 20 picks before selecting Columbia (Ill.) High School pitcher Dominic Voegele with their final pick.

Rebhan insisted it wasn’t part of some grand strategy, but simply a matter of following their board. It’s possible that there were more college selections than usual this year, simply because at the time these Draft-eligible college players were coming out of high school, the 2020 Draft was shortened to just five rounds.

“We just had history with [those players] back to high school,” Rebhan said. “It's always nice to have a little bit of track record and history dating back in terms of knowing the player, but also kind of watching them progress in their game.

“So yeah, a lot of really good well-rounded college players that we had a bunch of history with.”

Relievers with big stuff
General manager Mike Hazen has spoken over the past year about wanting to get more power relief arms coming through the farm system, and that may be why the D-backs seemed more comfortable taking pitchers with big fastballs who profile more as relievers than starters.

Lefty Ryan Bruno and righty Sam Knowlton fit that mold, as do the three relievers selected from Dallas Baptist University -- Kyle Amendt, Zane Russell and Alec Baker.

Especially when it comes to picks later in Draft, Rebhan said there is an advantage to taking those kinds of big-armed relievers.

“I think you always tell yourself that in the Draft, you're placing bets, right?” Rebhan said. “And I think if you go back and look at where the best spot to place bets is late in the Draft, it's on power arm guys that ended up in Major League bullpens.”

Nice moment for the Crenshaws
With their 19th-round pick, the D-backs selected outfielder Wyatt Crenshaw out of Arizona State University. Crenshaw is the son of longtime Arizona director of sports medicine and performance Ken Crenshaw.

The D-backs didn’t tell Ken, who was in the Draft room, ahead of time that they would be selecting Wyatt. Instead, they let him be surprised when they called in the pick.

Crenshaw then stepped outside in the hallway to call Wyatt, who is playing in the Pioneer League, with the news.

“I just told him, ‘Hey man, you’re a D-back,’” Ken Crenshaw said. “I told him how proud and happy I was for him. He was just kind of numb. He didn’t know what to say. A special moment for our family for sure. He’s definitely earned this opportunity.”