In a 16 teams head to head dynasty league with these stats.

Stat Categories
G A +- PIM PPP SHP FW SOG HITS BLKS
W GAA SV SV% SHO

We have 2 goaliestarts pr week as minimum.

I am not very strong in goalies with Fleury, Giguere and Fasth in the major team and Markstrom, frederik Andersen, Nihlstorp and Henrik Karlsson in minors.

I am hoping on Marksstrom to come and rule together with Fleury, but then I was offered this :

John Gibson + Huberdeau
for
Markstrom + Matt Read

At first I said no i will stick with Markstrom but is that the smartest move, afterall it is Huberdeau I got offered ?

while the offer is very enticing given your goaltending and it being a 16 team league you really cant afford to send markstrom out unless it is in a package to get a better goalie

Keep Markstrom for now. He's been developing for a long time and is almost ready to go, whereas Gibson is still a long ways off.

__________________
16 team, full keeper
19 roster players, 15 prospects
Stats: G, A, PPG, SHG, special teams assists, SOG, FOW, PIM, hits, blocked shots, +/-, W, SO, saves, s%, GAA, shootout saves

C: Crosby, Backstrom, H. Sedin, Boyle, Brassard
W: Voracek, Burrows, McDonald, Filppula, Dorsett, Hudler, Abdelkader, Bouchard, Ott, Zuccarello, Stalberg
D: Karlsson, Letang, Enstrom, Boyle, Giordano, Gorges, M. Stuart
G: Quick, Kiprusoff, Ellis

Prospects: Granlund, Pirri, Caron, Killorn, T. Johnson, Galiev, Corrado, Vatanen, Moore, Rundblad, Bachman, C. Johnson, Desjardins

Yup, agree.

Goalies are super-scarce in a 16-team league.
You need two good ones... and your best plan of action right now should be to wait for Markstrom to get there.