If you do the spreadsheet thing (like I do), the only real deal that works out is Scale,TA,Pruitt and Giddens for Tingsley,Daniels and a protected#1. That adds up to 7.7 verus 9.1 and Indiana saves some money. If Indiana doesn't want to give up a 1, everything becomes a problem and Boston doesn't do the deal. If Indiana insists on Walker instead of Giddens, it is 7.5 versus 9.1 but Boston may balk.
I can't see them giving up Foster instead of Tingsley even if they save the 1. If that happens, I will be surprised.