Teams that reach the All-Star Break firmly in last place typically consider making major moves by the July 31 non-waiver Trade Deadline.

That may be the case for many clubs. But it’s not what the Marlins are thinking.

After falling 5-2 in 10 innings to the Nationals on Sunday, Miami entered the break with a 35-58 record. Still, there is plenty of reason for optimism, mainly because its young core is coming together.

Since May 31, the Marlins are 22-17. And they are 21-17 since June 1, compared to a 14-41 mark in April and May.

The fact they’ve built some positive momentum has the Marlins leaning towards staying the course as the July 31 deadline approaches. They aren’t anticipating making any major trades.

Giancarlo Stanton, Logan Morrison, Steve Cishek and Mike Dunn have all been mentioned in trade speculation. All four are eligible for arbitration next year. But the bottom line is all four are considered building blocks for the remainder of this year and in 2014. Don’t expect any of them to be dealt. Of course, a team willing to dramatically overpay could change things. But that is highly unlikely.

In summing up the first half, first-year manager Mike Redmond noted the Marlins are pleased with the improvement, but they recognize there is plenty of room for improvement.

“By no means are we satisfied with where we are at,” Redmond said. “We know we can get better. We know we can continue to improve. We’ll go out there in the second half, and hopefully have a great second half and finish strong.”

The Marlins pretty much made their big move already. A week ago, they dealt Ricky Nolasco to the Dodgers for three pitching prospects.

It was no secret Nolasco was available, because the right-hander will be a free agent after the season. The Marlins feel they have a group of young starting pitchers to replace Nolasco, so they weren’t planning on making an offer to retain him.