The Giants entered this season with one of the worst farm systems in baseball. That has changed in a flash, just as the team looks to make another magical run in manager Bruce Bochy's final year sailing the ship.

As top prospects Joey Bart, Heliot Ramos and Marco Luciano have lived up to their hype, many others have been pleasant surprises. Everything can't be perfect, however, and there certainly have been a few disappointments this year as well.

MLB.com recently released their new top-30 rankings for each organization and there are a plethora of changes for the Giants. Here are the risers and fallers, and who joins the list from the team's 2019 draft class.

Risers

Conner Menez (No. 16): The left-hander wasn't even ranked in the Giants top 30 prospects to enter the season. Menez, 24, had average numbers at best his first two seasons in the minor leagues.

He broke out last season and led all lefties in the minors with 171 strikeouts in 135 1/3 innings between three levels -- Advanced Class-A San Jose, Double-A Richmond and Triple-A Sacramento. Menez started the season in Double-A this year and jumped all the way to making his major league debut.

Between Richmond and Sacramento, Menez has gone 5-3 with a 3.27 ERA and has 129 strikeouts in 99 innings. He struck out six and allowed two earned runs over five innings in his Giants debut.

Seth Corry (No. 8): Corry, the Giants' third-round pick in 2017, has developed slowly but it's paying off now. The fellow lefty has been downright filthy this season in Low-A Augusta. Corry tossed 5 2/3 innings of no-hit ball with 10 strikeouts Monday night before hitting his pitch limit.

The 20-year-old struggled with his command at the start of his career. This season, he's greatly improved in that area and hasn't allowed more than two walks in his past seven starts. Corry is 8-2 with a 1.85 ERA on the year and has 129 strikeouts in 92 1/3 innings.

Seth Corry ends his night with career high K #10 and 5.2 no hit innings. Corry hasn't allowed run since July 13 pic.twitter.com/TWxQxre40z — Roger Munter (@rog61) July 30, 2019

Franklin Labour (18): Labour, 21, also entered the season unranked. The Giants signed Labour out of the Dominican Republic in 2015 for $70K and have slow-played the start to his career in the minors. This year, though, he's enjoying a huge season at Class A Short Season with the Salem-Keizer Volcanoes.

The 6-foot-1 outfielder has raw power and that's translated to 14 home runs in 39 games. He's also hitting .312 with a 1.053 OPS.

Fallers

Chris Shaw (19): The former first-round pick keeps sliding down the rankings. Shaw made his major league debut last season but struggled in 22 games with the Giants. He then started the year back down in Double-A.

Between Richmond and Sacramento, Shaw has done everything that's asked of him. He's slashing .302 with 20 home runs and has a .371 on-base percentage. Shaw could be a late bloomer in the bigs or he simply could be a "Quadruple-A" player.

Heath Quinn (30): Quinn, 24, came into the season as the Giants' No. 13 prospect. He has some of the most power in the farm system, but can't stay consistent or healthy. After starting the year in Double-A, he's back in Single-A San Jose.

2019 MLB Draft Class

Hunter Bishop (4), Logan Wyatt (13), Grant McCray (22), Trevor McDonald (24), Tyler Fitzgerald (27), Garrett Frechette (28), Dylan Rosario (29)

Bishop clearly is the cream of the crop from the draft class. He's only hit .194 since being promoted to Salem-Keizer, but he still only has one more strikeout than walk to start his career in the minors.

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Frechette is a name to watch who can rise up the ranks. He has a sweet swing and his 6-foot-3 frame should help him unlock his natural power. At only 18 years old, keep an eye on him in the coming years.

Conner Menez rises, Chris Shaw falls on new Giants' top prospects list originally appeared on NBC Sports Bay Area