I agree with Berko about the defenders, If either team is serious, they will get better defenders during the transfer season because the current ones on both teams just aren't very good, I'm surprised neither team has made a move for Shai Maimon at Haifa.
Exactly. he is a decent defender. Had experience in the U-21 team and played as a starter at SC Ashdod and in the CL games with Haifa he had a solid performance, plus he wouldn´t occupy a foreign spot. Maimon would be a good purchase, but certainly for those things i mentioned above, Haifa won´t let him go, especially for direct rivals, but the player has already showed he is not very happy at the bench.
Other player that i thought would be a good bet was Tomer Ben Yosef, who for the last two seasons was a reserve player at Beitar, but it seems to be that he is not on his best form.
Zeev Haimovich who is playing at Terek Grozny would be a good purchase. I believe he would like to return to Israel in a big club, but probably the Russians are paying him well and this could interfere in negotiations.
Oshri Roash from Hapoel Haifa is an intresting player IMO. Maccabi or Beitar could try to sign him at the end of the season. The same goes with Din Mori from Bnei Yehuda who has already reached the senior NT and might be tempted to move to a bigger club despite having a good working enviroment built at the club from the Skhunat ha Tikva.
These are only some Israeli options that are realistic, but with new owners in Goldhar and Aguiar i guess that they should invest a bit more and bring better quality defenders. I mean, nothing against Raldes, he seems to be a nice guy, but he is not in a level to play for Maccabi Tel Aviv. We have better defenders on our youth. Tomasic could play in the heart of defense with Capiloto and we would survive until the end of the season.
If you bring a foreigner, bring someone who could contribute or else give space for the youth players.