TORONTO - Three trades in two days. And Toronto FC is still open for business.

"We're not finished yet," said Paul Mariner, director of player development. "We know we've got to do a little bit more. So we're working hard to do that."

The 3-9-9 MLS team added to its spine Friday by acquiring six-foot-five English defender Andy Iro, along with French midfielder Leandre Griffit, from the Columbus Crew in exchange for midfielder Tony Tchani.

Combine Iro with Toronto's new designated players -- holding midfielder Torsten Frings and striker Danny Koevermans -- and holdover goalkeeper Stefan Frei and coach Aron Winter has finally strength up the middle to build on.

On Thursday, Toronto acquired Canadian international midfielder Terry Dunfield from Vancouver and Jamaican international midfielder-forward Ryan Johnson from San Jose.

Dunfield cost allocation money and future considerations while Toronto sent forward Alan Gordon, midfielder Jacob Peterson and Canadian defender Nana Attakora to San Jose in exchange for Johnson, allocation money and an international player slot (until January 2013).

Asked if he was done dealing, Winter replied: "Not yet."

"But I'm happy now. ... At this moment, the players that I have and the players that are coming (in the trades), I'm satisfied. This is also part of the rebuilding process. ... Now the pieces are coming together."

For the aptly named Winter, who is icy cool, that's almost a tsunami of emotion.

Consider that after TFC's last outing, a 2-0 loss in Houston, his assessment of his team was a blunt "We've got a lot of lack of quality."

Winter hopes his talent upgrade will produce points in his 13 remaining league games.

Essentially Winter and Mariner have spent the first half of the season assessing what was needed in their own house while watching what was available elsewhere.

"Dunfield and Johnson were two that I liked," said the Dutch coach. "And I know they'll fit into the system we want to play."

Chances are Toronto will look like a different squad when it hosts FC Dallas next Wednesday.

"It's almost a new team again mid-season," said Frei, a rare TFC three-year veteran.

Fans hope this one is worth watching. Now in its fifth season, the club is no stranger to coaches (Winter is No. 6) or roster remakes.

The goalie said Winter had told them changes were coming.

"It's a business and we understand that if we can't produce results, things need to change," said Frei. "Everybody wants to win and if the guys that are here can't achieve that then you need to find other people that can do it. Hopefully that will happen now."

Said English defender Richard Ecklersley: "Football like's that. It's more acquaintances really rather than like best mates sort of thing. It's part and parcel (of the game). You just have to deal with it."

Iro, 26, was drafted sixth overall by Columbus in the 2008 MLS SuperDraft.

Griffit, 27, is in his second MLS season. He has spent time with Amiens SC of France, Southampton in England, IF Elfsborg in Sweden and Crystal Palace in England.

Tchani finds himself on his third team this season. He came to Toronto on April 1 from the New York Red Bulls as part of the deal for former Toronto captain Dwayne De Rosario.

Toronto may just have been a case of wrong club, wrong time for the promising box-to-box midfielder.

"Tony Tchani's a good lad, a good player," said Mariner. "He's going to be a very good player. But as everybody in Toronto has been watching (in our) games, we keep leaking goals.

"So it's obvious that we need a central defender and Andy was available. A left-footed central defender at that, which you can count on the fingers of one hand. ... He fits the bill ideally for us."