Although the Giants avoided any deadline discussions with Brown and Parker, Evans admitted the process took longer than he had hoped.
"We had hoped to be done a lot sooner; we prefer to get guys out a lot earlier," Evans said. "Sometimes it just takes longer than you wish."
Although Evans declined to discuss specifics of Brown's contract, MLB.com reporter Jonathan Mayo reported that Brown will receive a $1.45 million signing bonus.
Brown, a 6-foot, 185-pound center fielder from Cal State Fullerton, is projected as a top-of-the-order presence -- a commodity the Giants often struggled to find. In 48 games this season, Brown hit .438 with six home runs, 41 RBIs and 31 stolen bases in 36 attempts. He also recorded a .695 slugging percentage and a .485 on-base percentage.
Brown, 21, was a bit of a change of pace for the Giants, who have drafted pitchers with eight of their last nine first-round choices and 11 of their last 13. He was only the second outfielder drafted by the Giants in the first round in the last 17 years. They also took Dante Powell from Cal State Fullerton in 1994.
Parker, a 6-foot-4, 210-pound center fielder from the University of Virginia, hit .333 with 10 home runs, eight triples and 56 RBIs for the Cavaliers this season. He projects as a top-of-the-order hitter and a great basestealing threat with plus speed.
Evans said the Giants' plan is for Brown and Parker to arrive at Rookie League Arizona within the next week and expressed optimism each would join Class A Short-Season Salem-Kaiser before its regular season ends September 5.
Evans also said both players will participate in instructional league.
In all, the Giants were able to come to terms with 33 players from this year's Draft, including each of their first 14 selections and 18 of their top 20 picks.
The only two top-20 selections the Giants failed to sign were 15th pick Andrew Barbosa, a left-handed pitcher out of South Florida, and No. 19 Austin Southall, a high-school first baseman from University (La.) High School.
Evans said he didn't expect to sign any more picks before Monday's deadline, but added that there still were a few standing offers on the table.