So players that we signed that I thought would be amazing but didn't work out:
Blondel, Dalmat, Moussa Saib, Dean Richards, Bentley, Rebrov, Postiga, Gilberto, Murphy, Dumitrescu, Tramezzani, Dominguez, Acimovic, Toda, Zamora, Boateng, Saha, Rocha, Vega, Fryers, Bostock, Taaraabt, Dos Santos and Davenport.
The original question from the OP i.e. players that I desperately wanted us to sign but who have ended up brick:
Shevchenko, Rio Ferdinand (when he left Man U), Jack Rodwell, Lovren, Seth Johnson, Santa Cruz, Alves (the one that went to Middlesborough), Andy Carroll, Brolin, Marlet, Jeffers, Veron, El Hadji Diouf, Reyes, Luque, Kezman, Bosko Balaban, Joe Cole, Cuadrado, Falcao, Marlet, Boumsong, Denilson, Shaun Wright-Phillips, Quaresma and Diego.