Plenty of summer activities

The Celtics took an aggressive approach this offseason, signing Rasheed Wallace within a week after the start of free agent season, then obtaining a commitment from Indiana guard Marquis Daniels.

Several pieces are falling into place in Indiana, which could clarify how Daniels becomes a Celtic, one of them being if Jamaal Tinsley clears waivers Wednesday. The Pacers are in the midst of restructuring, and the departure of Tinsley means none of the Indiana players involved in a 2004 brawl involving the Pistons and fans will be on the Pacer roster.

Indiana also decided not to match Toronto’s offer for guard Jarrett Jack (four years, $20 million). The Pacers added guard Dahntay Jones from Denver (four years, $11 million) and their next target appears to be Dallas center Ryan Hollins. The Pacers have been proactive in the market and, once their roster is settled, they should be able to conclude the Daniels deal.

Unless a sign-and-trade can be worked out, Daniels will receive the biannual salary cap exception contract, worth nearly $2 million. The Celtics apparently are willing to part with Tony Allen, who is in the last year of his contract and could fill a backup role with the Pacers.

Once Daniels’s status has been established, the Celtics can deal with Stephon Marbury, a free agent, and Gabe Pruitt. The Celtics must decide whether to exercise an option on Pruitt by Friday.

Meanwhile, the waiting game could be paying off for Celtics restricted free agent forward Glen Davis. Or not.

Several teams are interested in Davis, but realize the Celtics will match any reasonable offer - likely in the range of $4 million to the midrange exception.

The Paul Millsap saga might have set the tone for the market for restricted free agents. Portland offered Millsap a four-year, $32 million deal, but that did not faze the Jazz.

“If Portland couldn’t get Millsap, it makes you wonder what you have to do,’’ said an agent involved in another restricted free agent negotiation. “Portland did everything possible to get Millsap, and then Utah matched.’’

In Davis’s favor is that he is in the Early Bird exception category, meaning the Celtics can sign him for the NBA average salary. The Pistons, Nets, and Hornets are monitoring Davis. If their offers are in the $3 million-$4 million range, the Celtics will match. So, the only way they can expect to acquire Davis is with a full midlevel exception contract (worth about $5.8 million), and nobody is eager to go that high right now.

Then, there is Rajon Rondo.

The Celtics were prepared to renegotiate with Rondo even before last season’s playoffs. Then, after a strong playoff performance, Rondo believed his value had increased. The problem was, the Celtics thought Rondo was overestimating his worth. Both sides started sending out messages through the media, the Celtics placing Rondo and agent Bill Duffy on the defensive before a truce was apparently called.

Any dealings with Rondo will probably remain on the back burner until other roster issues are sorted out and Celtics president of basketball operations Danny Ainge returns from vacation next week.

Meanwhile, Rondo and several Celtics were set to attend the wedding of center Kendrick Perkins in The Woodlands, Texas, yesterday.

Garnett shows friendly side

Meanwhile, the basketball-soccer connection continued at Inter’s hotel in Beverly Hills, where Italian defender Marco Materazzi bumped into Magic Johnson, a photo of the pair being featured in European publications. Materazzi, a starter for World Cup champion Italy (he was head-butted by France’s Zinedine Zidane in the 2006 final in Berlin), lists Johnson, Michael Jordan, Larry Bird, Kobe Bryant, and Garnett as his favorite NBA players.

“That was a dream come true, to meet Magic Johnson,’’ Materazzi said during an interview after an Inter practice session at Harvard University. “Since I was little, I have liked the NBA. I watched Boston, the Lakers, and Chicago win championships on TV.’’

Materazzi also keeps up with the New York Knicks’ Danilo Gallinari.

“I know of Gallinari because he is from Milan,’’ Materazzi said. “He is a strong player. He has had some back problems, but he seems like he’ll be ready for the season.’’

While staying in Boston, Materazzi was hoping to contact Garnett, whose offseason home is in Malibu, Calif.

“Tell him I want one of his jerseys and I’ll give him one of mine,’’ Materazzi said.

This Ainge making own bench mark

Jennings was 27 when he was named a Celtics assistant in 1990 and was on the bench until 1995, when he was replaced by John Kuester, who was recently named head coach of the Pistons.

Papile was 24 when he became general manager/coach of the Quincy Chiefs of the Eastern Basketball Association in the 1977-78 season.

Austin Ainge was a member of one of the youngest Summer Pro League staffs in Orlando earlier this month, the team guided by Celtics assistant Mike Longabardi, 36.

“I was a 27-year-old coaching the likes of [Larry ] Bird and [Robert ] Parish,’’ Jennings said of selecting Ainge as coach. “I constantly stress that this is a development league, it’s to develop players, coaches, front office staff, dance team, you name it.

“This was exclusively our decision. Never, at any time, did Danny or the Celtics organization or the Bobcats suggest Austin or put any pressure on us. I asked Danny if it was OK to interview Austin and I was blown away by, not only his statistical and tape analysis, but by his maturity as a basketball person.’’

Coaching used to be a young man’s game. In 1964, Dave DeBusschere was a 24-year-old player-coach of the Pistons. In the 1940s and ’50s, several NBA coaches were 20- and 30-somethings. In 1946, Red Auerbach was 29 when he guided the Washington Capitols to a 49-11 record, best in the regular season.

Frank Dell’Apa can be reached at f_dellapa@globe.com.