PORT ST LUCIE The Mets have said all winter and spring, the health of their pitching will determine their success this season. They head north with most of their rotation healthy, but question marks in their lineup.

Heres how scouts from around baseball see the Mets starting lineup, rotation and closer.

Travis d’Arnaud112 games, 348 AB, 16 HR, 57 RBI, .244 avg.

Kevin Plawecki37 games, 100 AB, 3 HR, 13 RBI, .260 avg.

New manager Mickey Callaway out to have Mets rolling in 2018

Its interesting they are going to platoon them, well see if it works. DArnaud is the better hitter, receives the ball fine, but still not throwing well. Plawecki has improved. A lot. Hes gotten better than I thought he could be. Hes probably better defensively. I am not sure either one is going to be the best fit. AL scout

Adrian Gonzalez71 games, 231 AB, 3 HR, 30 RBI, .242 avg.

“He looks fine around first. He can still pick it there. His at-bats have been tough. The stat line is horse(poop), but I think his bat speed looks OK. I just dont know if he will still have any power. AL scout

Asdrubal Cabrera135 games, 479 AB, 14 HR, 59 RBI, .280 avg.

Mets plan to start Tim Tebow with Double-A Binghamton

Steady. He looks like hes in shape. Moving around fine for a guy with his body type and age. His at-bats have been good. If you hit it to him hes gonna catch it and throw you out, but his range is limited now. NL Scout

Amed Rosario46 games, 165 AB, 4 HR, 10 RBI, .248 avg.

Should be a star. Hes got the tools, got the athleticism, the skill level is developing. What I noticed, so far, is when he swings at strikes he hits them hard, not chasing as much as I saw when he came up last year. Its spring training and he missed a week. AL scout

Todd Frazier147 games, 474 AB, 27 HR, 76 RBI, .213 avg.

Seth Lugo shows resiliency by earning spot start in Mets rotation

He reacts well at third base. Looks like his arm is still strong. His at-bats this spring havent been great, but he still has power in there. I think hell come around. AL scout

Yoenis Cespedes81 games, 291 AB, 17 HR, 42 RBI, .292 avg.

You cant really see a difference physically from last spring, but he was so limited (because of injuries). He looks like the same guy in the field and at the plate, still has the power and still likes to chase the high fastball once in a while. If he stays on the field, hell be great. NL scout

Brandon Nimmo69 games, 177 AB, 5 HR, 21 RBI, .260 avg.

Mets’ Michael Conforto runs out of time, will start season on DL

I like him. High energy, good at-bats. Hes probably a fourth outfielder who is a good pinch hitter. He runs decent routes, his arm is below average. Ideally youd want a guy like Juan Lagares in a big center field like at (Citi Field), but they cant afford his bat in the lineup. Nimmo will be fine as a replacement until (Michael) Conforto is back. AL scout

Jay Bruce146 games, 555 AB, 36 HR, 101 RBI, .254 avg.

Hes an adequate defender and a big bat. Thats how he looked last year and this spring he looks the same. I think that he will have a big year for them offensively. If they could get him to move to first base it would be even better. AL scout

Noah Syndergaard1-2, 2.97 ERA, 30.1 IP, 34 SO, 3 BB

Jason Vargas throws 47 pitches in Sunday bullpen session for Mets

If he keeps pitching the way Ive seen him pitch in his three starts, he should win every award; MVP, Cy Young, everything. All he has to do is stay healthy and maintain what hes doing. AL scout

Jacob deGrom15-10, 3.53 ERA, 201.1 IP, 239 SO, 59 BB

All he does is go out and compete. Hes got nasty stuff, his delivery is so long and low, it makes it hard on hitters to pick it up. He looked like he is already in midseason form. Hes the guy Id want in a big game. AL scout

Matt Harvey5-7, 6.70 ERA, 92.2 IP, 67 SO, 47 BB

Mets’ Jason Vargas likely to open the season on the disabled list

By far the best I have seen him in the last three years. He may not have the same stuff he did when he was coming up, but he looks good. That changeup is his best pitch and its coming back, the slider is coming back to him. He looks good and his stuff still plays. NL scout

Steven Matz2-7, 6.08 ERA, 66.2 IP, 48 SO, 19 BB

He looks like he is still overcoming some bad habits he picked up when he was hurt, but he is coming along. He struggled to finish his pitches at times, leaving the ball up, but he is self-correcting on the mound. Thats important. The stuff is still there, he just has to find his rhythm again. NL scout

Seth Lugo7-5, 4.71 ERA, 101.1 IP, 85 SO, 25 BB

Tough love for Wheeler as Mets send struggling righty to minors

Jeurys Familia2-2, 4.38 ERA, 24.2 IP, 6 S, 1 BS

Best hes looked in a while. Hes sitting 95-96, the sink was back on his ball, hes thrown a couple of (splitters), which he wont have to throw for strikes when hes 0-2, 1-2 and the slider is coming. He looks better than he did last year. AL scout