They don't really bring anything new to the system, im sure Iginla, Ritchie, Senecke etc. will be decent players but they are not what we are short off. Besides a power forward, there is a need for veteran top-4 D and someone like Florida who has to sign some hefty new contracts and has a empty prospect pool and no 1st or 2nd round picks this year could be intrested in a trade.
Any pick in this draft doesn't change the landscape in Detroit's prospect pool but MBN is the most suitable because of his style. Top-4 D would stabilize the defense and that would help Detroit win more games next season. The rebuild is over, now it's the time to find the missing pieces and start fighting for the playoff spot. Next years draft will have it's own Ritchie/Senecke's.
Only problem with Chernyshov is he allowed to leave Russia before he turns 26 like the Russian hockey association hopes. 8 years is long time to wait for a power forward, MBN could be ready in 2-3 years.
So instead of picking another soft 40 point guy, why not use the pick in a trade and improve the team immediately?