AUBURN HILLS -- Stan Van Gundy declined to disclose the teams that hit the Detroit Pistons with trade offers for Stanley Johnson on Thursday night, but he said they constituted the team's only moments of pause during the NBA draft.

Van Gundy said the Pistons took trade calls from "four or five teams" both before and after the team used the No. 8 overall pick on Johnson, the former Arizona small forward.

One call, received with the Pistons on the clock after the Denver Nuggers chose Emmanuel Mudiay at No. 7, prompted Van Gundy, general manager Jeff Bower and assistant general manager Brian Wright to huddle away from others in the war room.

"The tough decisions draft night are the trades that present themselves," said Van Gundy, the Pistons' president of basketball operations and head coach. "Those are the things that you've got to sort of think on your feet and make decisions."

PISTONS NOTES

Malleable youth for shooting coach: Johnson is a good shooter, but not a great one, and the night of his selection coincided with the announcement that Dave Hopla will be the first specialized shooting coach in team history. Improving perimeter shooting is an imperative. "I think Stanley's going to be a really good shooter," Van Gundy said. "He's going to evolve. It's going to take some time. There's a few corrections we need to make. But when you look at his release, and his rotation on the ball, and the fact that it actually goes in at a pretty good percentage, he's a pretty good shooter." Van Gundy wanted to target a dribble creator this summer, and while Johnson's rim finishes were not outstanding in his one year at Arizona, he and teammate Rondae Hollis-Jefferson (No. 23, Portland) both ranked among the top six in Pacific-10 Conference free throws. "We don't have a lot of guys who get to the line, and that's an important thing, I think, at any time, but certainly we want to be playing playoff basketball, and that's huge there," Van Gundy said. "You've got to be able to stop runs and things."

Consulting a familiar face: Van Gundy said he called Arizona coach Sean Miller just before the Pistons selected Johnson to make sure the college coach's endorsement was solid and give an old colleague one last chance to warn him away from the pick. Miller was a graduate assistant at the University of Wisconsin more than 20 years ago, when Van Gundy was head coach there.

And consulting yet another familiar face: The Pistons have secured former Canisius point guard Billy Baron, who played his first season professionally last year in Lithuania, for next week's Orlando Pro Summer League. Baron was 2014 player of the year in the Metro Atlantic Athletic Conference while Jeff Bower, now Pistons general manager, was head coach at fellow MAAC member Marist. Assistant general manager Jeff Nix is putting together the summer league roster. The Pistons have two-a-day practices scheduled three days next week in Orlando before opening play at 11 a.m. July 4 vs. the host Magic's "White" team (Orlando also has a "Blue" entry).

Mark your calendar: The Pistons' third game in summer league, at 5 p.m. July 6, is against the Miami Heat -- Johnson vs. Justise Winslow.

The Tolliver Effect continues: Anthony Tolliver's $3 million option will be picked up after the Pistons didn't draft a power forward Thursday, a team source confirmed. The Pistons could have released Tolliver for $400,000 but never intended to do so.

Securing the point: In another business formality, the Pistons have extended a qualifying offer to point guard Reggie Jackson, officially making him a restricted free agent on July 1. The Pistons can match any external offer Jackson receives and intend to keep him.

-- Download the Detroit Pistons on MLive app for iPhone and Android

-- Like MLive's Detroit Pistons Facebook page