Yep it most likely would have been better to have delisted Jackson last year and picked up someone from the second tier comps. Magner would be a massive improvement on Jacko or maybe that Valenti guy. Pretty sure the big knock on him is his speed which would be no problem compared to Jacko. These guys are probably just stop gaps who won't last but so is Jackson.
an upgrade is an uprade or an improvement is an improvement. theres nothing that says that upgrade has to be long term. if we go get say wheeler to replace jacko and he would be an improvement then in two yrs have to find a replacement for wheeler as long as its a better player the bar is continually being raised.
its funny few acknowledge its just as important to value add if you ke and raise the standard as it is to make sure you get 3 or 5 good players thru trade and draft each yr.