Listen, here's the bottom line.
We have signed two relatively well known PL players with a good past reputation.
They are slightly off form right now (wouldn't be able to buy them otherwise)
Therefore it is a gamble.
But so were Altidore, Ghilas, Bullard, King(s), Prozzy, Mclean and so on.. all for various reasons (age, injuries, foreign, lower league and so on)
But as far as gambles go these two are far better ones, that is undeniable.
You can bet your house that most (honest) sunderland, palace, west ham, norwich, Cardiff fans will be envious.