they should aim for onur/peu not koy. They need to build around mwzera and khalil. Theres a world where you can keep kon4n if money is tight. Let the coach make roster not player as they have conflict of interest. They need IGL>DUELIST>SENTINEL in that order. For igl no brainer raafa. Top priority. Other options are xand(might not fit), deigara (he knows pt and had a great season), murizz (do not like and had a poor season but experienced), ntk (secondary caller on union, but there drama), and this one my own opinion adverso (did not work on 00 but he has good firepower and fit roles+ good pt)
For sentinel you can go for pancc (doubt it for all the drama involved, but hes the best option firepower wise), bezn1, guihh and bld.
For duelist i suggest tomaszy as he looked tier 1 level and he knows pt but hes an import and that comes with problem and cost. Theres options, like havoc(best option after tomaszy), askia(lack of experience but talented), tisora(waaay to agressive like dg), liazzi (roles clash with mw), artzin(gave duelist to xand), etc.